diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2008-05-17 16:01:05 +0200 |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2008-05-17 16:01:05 +0200 |
commit | 0e50a4c6ab94ffe7e5515b86b5df9e5abc8c6b13 (patch) | |
tree | 3c688483e71261f564fc43be3157b337ae340dca /fs | |
parent | 34b2cd5b688b012975fcfc3b3970fc3508fa82c4 (diff) | |
parent | f26a3988917913b3d11b2bd741601a2c64ab9204 (diff) |
Merge branch 'linus' into x86/pebstip-x86-pebs-2008-05-17-14-01-06
Diffstat (limited to 'fs')
-rw-r--r-- | fs/9p/fid.h | 15 | ||||
-rw-r--r-- | fs/9p/v9fs.c | 57 | ||||
-rw-r--r-- | fs/9p/v9fs.h | 85 | ||||
-rw-r--r-- | fs/9p/vfs_addr.c | 2 | ||||
-rw-r--r-- | fs/9p/vfs_dir.c | 2 | ||||
-rw-r--r-- | fs/9p/vfs_file.c | 11 | ||||
-rw-r--r-- | fs/9p/vfs_inode.c | 50 | ||||
-rw-r--r-- | fs/9p/vfs_super.c | 35 | ||||
-rw-r--r-- | fs/cifs/cifspdu.h | 1 | ||||
-rw-r--r-- | fs/cifs/cifssmb.c | 16 | ||||
-rw-r--r-- | fs/cifs/connect.c | 79 | ||||
-rw-r--r-- | fs/cifs/dir.c | 16 | ||||
-rw-r--r-- | fs/cifs/inode.c | 35 | ||||
-rw-r--r-- | fs/dquot.c | 10 | ||||
-rw-r--r-- | fs/ecryptfs/inode.c | 13 | ||||
-rw-r--r-- | fs/ecryptfs/miscdev.c | 2 | ||||
-rw-r--r-- | fs/exec.c | 2 | ||||
-rw-r--r-- | fs/ext3/xattr.c | 5 | ||||
-rw-r--r-- | fs/ext4/balloc.c | 17 | ||||
-rw-r--r-- | fs/ext4/mballoc.c | 72 | ||||
-rw-r--r-- | fs/ext4/super.c | 80 | ||||
-rw-r--r-- | fs/ext4/xattr.c | 5 | ||||
-rw-r--r-- | fs/fuse/file.c | 2 | ||||
-rw-r--r-- | fs/fuse/fuse_i.h | 3 | ||||
-rw-r--r-- | fs/fuse/inode.c | 5 | ||||
-rw-r--r-- | fs/hfsplus/inode.c | 2 | ||||
-rw-r--r-- | fs/hppfs/Makefile | 6 | ||||
-rw-r--r-- | fs/hppfs/hppfs.c (renamed from fs/hppfs/hppfs_kern.c) | 82 | ||||
-rw-r--r-- | fs/jbd/commit.c | 2 | ||||
-rw-r--r-- | fs/jbd2/commit.c | 2 | ||||
-rw-r--r-- | fs/jbd2/journal.c | 4 | ||||
-rw-r--r-- | fs/proc/array.c | 1 | ||||
-rw-r--r-- | fs/ufs/ufs.h | 1 |
33 files changed, 456 insertions, 264 deletions
diff --git a/fs/9p/fid.h b/fs/9p/fid.h index 26e07df783b9..c3bbd6af996d 100644 --- a/fs/9p/fid.h +++ b/fs/9p/fid.h @@ -22,6 +22,21 @@ #include <linux/list.h> +/** + * struct v9fs_dentry - 9p private data stored in dentry d_fsdata + * @lock: protects the fidlist + * @fidlist: list of FIDs currently associated with this dentry + * + * This structure defines the 9p private data associated with + * a particular dentry. In particular, this private data is used + * to lookup which 9P FID handle should be used for a particular VFS + * operation. FID handles are associated with dentries instead of + * inodes in order to more closely map functionality to the Plan 9 + * expected behavior for FID reclaimation and tracking. + * + * See Also: Mapping FIDs to Linux VFS model in + * Design and Implementation of the Linux 9P File System documentation + */ struct v9fs_dentry { spinlock_t lock; /* protect fidlist */ struct list_head fidlist; diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index 9b0f0222e8bb..047c791427aa 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -71,19 +71,19 @@ static match_table_t tokens = { /** * v9fs_parse_options - parse mount options into session structure - * @options: options string passed from mount * @v9ses: existing v9fs session information * + * Return 0 upon success, -ERRNO upon failure. */ -static void v9fs_parse_options(struct v9fs_session_info *v9ses) +static int v9fs_parse_options(struct v9fs_session_info *v9ses) { char *options; substring_t args[MAX_OPT_ARGS]; char *p; int option = 0; char *s, *e; - int ret; + int ret = 0; /* setup defaults */ v9ses->afid = ~0; @@ -91,19 +91,26 @@ static void v9fs_parse_options(struct v9fs_session_info *v9ses) v9ses->cache = 0; if (!v9ses->options) - return; + return 0; options = kstrdup(v9ses->options, GFP_KERNEL); + if (!options) { + P9_DPRINTK(P9_DEBUG_ERROR, + "failed to allocate copy of option string\n"); + return -ENOMEM; + } + while ((p = strsep(&options, ",")) != NULL) { int token; if (!*p) continue; token = match_token(p, tokens, args); if (token < Opt_uname) { - ret = match_int(&args[0], &option); - if (ret < 0) { + int r = match_int(&args[0], &option); + if (r < 0) { P9_DPRINTK(P9_DEBUG_ERROR, "integer field, but no integer?\n"); + ret = r; continue; } } @@ -125,10 +132,10 @@ static void v9fs_parse_options(struct v9fs_session_info *v9ses) v9ses->afid = option; break; case Opt_uname: - match_strcpy(v9ses->uname, &args[0]); + match_strlcpy(v9ses->uname, &args[0], PATH_MAX); break; case Opt_remotename: - match_strcpy(v9ses->aname, &args[0]); + match_strlcpy(v9ses->aname, &args[0], PATH_MAX); break; case Opt_nodevmap: v9ses->nodev = 1; @@ -139,6 +146,13 @@ static void v9fs_parse_options(struct v9fs_session_info *v9ses) case Opt_access: s = match_strdup(&args[0]); + if (!s) { + P9_DPRINTK(P9_DEBUG_ERROR, + "failed to allocate copy" + " of option argument\n"); + ret = -ENOMEM; + break; + } v9ses->flags &= ~V9FS_ACCESS_MASK; if (strcmp(s, "user") == 0) v9ses->flags |= V9FS_ACCESS_USER; @@ -158,6 +172,7 @@ static void v9fs_parse_options(struct v9fs_session_info *v9ses) } } kfree(options); + return ret; } /** @@ -173,6 +188,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses, { int retval = -EINVAL; struct p9_fid *fid; + int rc; v9ses->uname = __getname(); if (!v9ses->uname) @@ -190,8 +206,21 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses, v9ses->uid = ~0; v9ses->dfltuid = V9FS_DEFUID; v9ses->dfltgid = V9FS_DEFGID; - v9ses->options = kstrdup(data, GFP_KERNEL); - v9fs_parse_options(v9ses); + if (data) { + v9ses->options = kstrdup(data, GFP_KERNEL); + if (!v9ses->options) { + P9_DPRINTK(P9_DEBUG_ERROR, + "failed to allocate copy of option string\n"); + retval = -ENOMEM; + goto error; + } + } + + rc = v9fs_parse_options(v9ses); + if (rc < 0) { + retval = rc; + goto error; + } v9ses->clnt = p9_client_create(dev_name, v9ses->options); @@ -233,7 +262,6 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses, return fid; error: - v9fs_session_close(v9ses); return ERR_PTR(retval); } @@ -256,9 +284,12 @@ void v9fs_session_close(struct v9fs_session_info *v9ses) } /** - * v9fs_session_cancel - mark transport as disconnected - * and cancel all pending requests. + * v9fs_session_cancel - terminate a session + * @v9ses: session to terminate + * + * mark transport as disconnected and cancel all pending requests. */ + void v9fs_session_cancel(struct v9fs_session_info *v9ses) { P9_DPRINTK(P9_DEBUG_ERROR, "cancel session %p\n", v9ses); p9_client_disconnect(v9ses->clnt); diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h index 7d3a1018db52..a7d567192998 100644 --- a/fs/9p/v9fs.h +++ b/fs/9p/v9fs.h @@ -21,18 +21,69 @@ * */ -/* - * Session structure provides information for an opened session - * - */ +/** + * enum p9_session_flags - option flags for each 9P session + * @V9FS_EXTENDED: whether or not to use 9P2000.u extensions + * @V9FS_ACCESS_SINGLE: only the mounting user can access the hierarchy + * @V9FS_ACCESS_USER: a new attach will be issued for every user (default) + * @V9FS_ACCESS_ANY: use a single attach for all users + * @V9FS_ACCESS_MASK: bit mask of different ACCESS options + * + * Session flags reflect options selected by users at mount time + */ +enum p9_session_flags { + V9FS_EXTENDED = 0x01, + V9FS_ACCESS_SINGLE = 0x02, + V9FS_ACCESS_USER = 0x04, + V9FS_ACCESS_ANY = 0x06, + V9FS_ACCESS_MASK = 0x06, +}; + +/* possible values of ->cache */ +/** + * enum p9_cache_modes - user specified cache preferences + * @CACHE_NONE: do not cache data, dentries, or directory contents (default) + * @CACHE_LOOSE: cache data, dentries, and directory contents w/no consistency + * + * eventually support loose, tight, time, session, default always none + */ + +enum p9_cache_modes { + CACHE_NONE, + CACHE_LOOSE, +}; + +/** + * struct v9fs_session_info - per-instance session information + * @flags: session options of type &p9_session_flags + * @nodev: set to 1 to disable device mapping + * @debug: debug level + * @afid: authentication handle + * @cache: cache mode of type &p9_cache_modes + * @options: copy of options string given by user + * @uname: string user name to mount hierarchy as + * @aname: mount specifier for remote hierarchy + * @maxdata: maximum data to be sent/recvd per protocol message + * @dfltuid: default numeric userid to mount hierarchy as + * @dfltgid: default numeric groupid to mount hierarchy as + * @uid: if %V9FS_ACCESS_SINGLE, the numeric uid which mounted the hierarchy + * @clnt: reference to 9P network client instantiated for this session + * @debugfs_dir: reference to debugfs_dir which can be used for add'l debug + * + * This structure holds state for each session instance established during + * a sys_mount() . + * + * Bugs: there seems to be a lot of state which could be condensed and/or + * removed. + */ struct v9fs_session_info { /* options */ - unsigned char flags; /* session flags */ - unsigned char nodev; /* set to 1 if no disable device mapping */ - unsigned short debug; /* debug level */ - unsigned int afid; /* authentication fid */ - unsigned int cache; /* cache mode */ + unsigned char flags; + unsigned char nodev; + unsigned short debug; + unsigned int afid; + unsigned int cache; char *options; /* copy of mount options */ char *uname; /* user name to mount as */ @@ -45,22 +96,6 @@ struct v9fs_session_info { struct dentry *debugfs_dir; }; -/* session flags */ -enum { - V9FS_EXTENDED = 0x01, /* 9P2000.u */ - V9FS_ACCESS_MASK = 0x06, /* access mask */ - V9FS_ACCESS_SINGLE = 0x02, /* only one user can access the files */ - V9FS_ACCESS_USER = 0x04, /* attache per user */ - V9FS_ACCESS_ANY = 0x06, /* use the same attach for all users */ -}; - -/* possible values of ->cache */ -/* eventually support loose, tight, time, session, default always none */ -enum { - CACHE_NONE, /* default */ - CACHE_LOOSE, /* no consistency */ -}; - extern struct dentry *v9fs_debugfs_root; struct p9_fid *v9fs_session_init(struct v9fs_session_info *, const char *, diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c index 6248f0e727a3..97d3aed57983 100644 --- a/fs/9p/vfs_addr.c +++ b/fs/9p/vfs_addr.c @@ -43,7 +43,7 @@ /** * v9fs_vfs_readpage - read an entire page in from 9P * - * @file: file being read + * @filp: file being read * @page: structure to page * */ diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c index 0924d4477da3..88e3787c6ea9 100644 --- a/fs/9p/vfs_dir.c +++ b/fs/9p/vfs_dir.c @@ -60,7 +60,7 @@ static inline int dt_type(struct p9_stat *mistat) /** * v9fs_dir_readdir - read a directory - * @filep: opened file structure + * @filp: opened file structure * @dirent: directory structure ??? * @filldir: function to populate directory structure ??? * diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index a616fff8906d..0d55affe37d4 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -90,10 +90,11 @@ int v9fs_file_open(struct inode *inode, struct file *file) /** * v9fs_file_lock - lock a file (or directory) - * @inode: inode to be opened - * @file: file being opened + * @filp: file to be locked + * @cmd: lock command + * @fl: file lock structure * - * XXX - this looks like a local only lock, we should extend into 9P + * Bugs: this looks like a local only lock, we should extend into 9P * by using open exclusive */ @@ -118,7 +119,7 @@ static int v9fs_file_lock(struct file *filp, int cmd, struct file_lock *fl) /** * v9fs_file_read - read from a file - * @filep: file pointer to read + * @filp: file pointer to read * @data: data buffer to read data into * @count: size of buffer * @offset: offset at which to read data @@ -142,7 +143,7 @@ v9fs_file_read(struct file *filp, char __user * data, size_t count, /** * v9fs_file_write - write to a file - * @filep: file pointer to write + * @filp: file pointer to write * @data: data buffer to write data from * @count: size of buffer * @offset: offset at which to write data diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 6a28842052ea..40fa807bd929 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -129,6 +129,12 @@ static int p9mode2unixmode(struct v9fs_session_info *v9ses, int mode) return res; } +/** + * v9fs_uflags2omode- convert posix open flags to plan 9 mode bits + * @uflags: flags to convert + * + */ + int v9fs_uflags2omode(int uflags) { int ret; @@ -312,6 +318,14 @@ error: } */ +/** + * v9fs_inode_from_fid - populate an inode by issuing a attribute request + * @v9ses: session information + * @fid: fid to issue attribute request for + * @sb: superblock on which to create inode + * + */ + static struct inode * v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid, struct super_block *sb) @@ -384,9 +398,12 @@ v9fs_open_created(struct inode *inode, struct file *file) /** * v9fs_create - Create a file + * @v9ses: session information + * @dir: directory that dentry is being created in * @dentry: dentry that is being created * @perm: create permissions * @mode: open mode + * @extension: 9p2000.u extension string to support devices, etc. * */ static struct p9_fid * @@ -461,7 +478,7 @@ error: /** * v9fs_vfs_create - VFS hook to create files - * @inode: directory inode that is being created + * @dir: directory inode that is being created * @dentry: dentry that is being deleted * @mode: create permissions * @nd: path information @@ -519,7 +536,7 @@ error: /** * v9fs_vfs_mkdir - VFS mkdir hook to create a directory - * @inode: inode that is being unlinked + * @dir: inode that is being unlinked * @dentry: dentry that is being unlinked * @mode: mode for new directory * @@ -703,9 +720,9 @@ done: /** * v9fs_vfs_getattr - retrieve file metadata - * @mnt - mount information - * @dentry - file to get attributes on - * @stat - metadata structure to populate + * @mnt: mount information + * @dentry: file to get attributes on + * @stat: metadata structure to populate * */ @@ -928,7 +945,7 @@ done: /** * v9fs_vfs_readlink - read a symlink's location * @dentry: dentry for symlink - * @buf: buffer to load symlink location into + * @buffer: buffer to load symlink location into * @buflen: length of buffer * */ @@ -996,10 +1013,12 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd) * v9fs_vfs_put_link - release a symlink path * @dentry: dentry for symlink * @nd: nameidata + * @p: unused * */ -static void v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p) +static void +v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p) { char *s = nd_get_link(nd); @@ -1008,6 +1027,15 @@ static void v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void __putname(s); } +/** + * v9fs_vfs_mkspecial - create a special file + * @dir: inode to create special file in + * @dentry: dentry to create + * @mode: mode to create special file + * @extension: 9p2000.u format extension string representing special file + * + */ + static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry, int mode, const char *extension) { @@ -1037,7 +1065,7 @@ static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry, * @dentry: dentry for symlink * @symname: symlink data * - * See 9P2000.u RFC for more information + * See Also: 9P2000.u RFC for more information * */ @@ -1058,10 +1086,6 @@ v9fs_vfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname) * */ -/* XXX - lots of code dup'd from symlink and creates, - * figure out a better reuse strategy - */ - static int v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) @@ -1098,7 +1122,7 @@ clunk_fid: * @dir: inode destination for new link * @dentry: dentry for file * @mode: mode for creation - * @dev_t: device associated with special file + * @rdev: device associated with special file * */ diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index a452ac67fc94..bf59c3960494 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -75,6 +75,7 @@ static int v9fs_set_super(struct super_block *s, void *data) * v9fs_fill_super - populate superblock with info * @sb: superblock * @v9ses: session information + * @flags: flags propagated from v9fs_get_sb() * */ @@ -127,29 +128,26 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags, fid = v9fs_session_init(v9ses, dev_name, data); if (IS_ERR(fid)) { retval = PTR_ERR(fid); - fid = NULL; - kfree(v9ses); - v9ses = NULL; - goto error; + goto close_session; } st = p9_client_stat(fid); if (IS_ERR(st)) { retval = PTR_ERR(st); - goto error; + goto clunk_fid; } sb = sget(fs_type, NULL, v9fs_set_super, v9ses); if (IS_ERR(sb)) { retval = PTR_ERR(sb); - goto error; + goto free_stat; } v9fs_fill_super(sb, v9ses, flags); inode = v9fs_get_inode(sb, S_IFDIR | mode); if (IS_ERR(inode)) { retval = PTR_ERR(inode); - goto error; + goto release_sb; } inode->i_uid = uid; @@ -158,7 +156,7 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags, root = d_alloc_root(inode); if (!root) { retval = -ENOMEM; - goto error; + goto release_sb; } sb->s_root = root; @@ -169,21 +167,22 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags, return simple_set_mnt(mnt, sb); -error: - kfree(st); - if (fid) - p9_client_clunk(fid); - - if (v9ses) { - v9fs_session_close(v9ses); - kfree(v9ses); - } - +release_sb: if (sb) { up_write(&sb->s_umount); deactivate_super(sb); } +free_stat: + kfree(st); + +clunk_fid: + p9_client_clunk(fid); + +close_session: + v9fs_session_close(v9ses); + kfree(v9ses); + return retval; } diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index a0d26b540d4e..c43bf4b7a556 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -340,6 +340,7 @@ #define OPEN_NO_RECALL 0x00400000 #define OPEN_FREE_SPACE_QUERY 0x00800000 /* should be zero */ #define CREATE_OPTIONS_MASK 0x007FFFFF +#define CREATE_OPTION_READONLY 0x10000000 #define CREATE_OPTION_SPECIAL 0x20000000 /* system. NB not sent over wire */ /* ImpersonationLevel flags */ diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index cfd9750852b3..95fbba4ea7d4 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1224,11 +1224,8 @@ OldOpenRetry: else /* BB FIXME BB */ pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); - /* if ((omode & S_IWUGO) == 0) - pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ - /* Above line causes problems due to vfs splitting create into two - pieces - need to set mode after file created not while it is - being created */ + if (create_options & CREATE_OPTION_READONLY) + pSMB->FileAttributes |= cpu_to_le16(ATTR_READONLY); /* BB FIXME BB */ /* pSMB->CreateOptions = cpu_to_le32(create_options & @@ -1331,17 +1328,16 @@ openRetry: pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); else pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); + /* XP does not handle ATTR_POSIX_SEMANTICS */ /* but it helps speed up case sensitive checks for other servers such as Samba */ if (tcon->ses->capabilities & CAP_UNIX) pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); - /* if ((omode & S_IWUGO) == 0) - pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY);*/ - /* Above line causes problems due to vfs splitting create into two - pieces - need to set mode after file created not while it is - being created */ + if (create_options & CREATE_OPTION_READONLY) + pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY); + pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); pSMB->CreateDisposition = cpu_to_le32(openDisposition); pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 791ca5c1a116..f428bf3bf1a9 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -348,7 +348,6 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) int reconnect; current->flags |= PF_MEMALLOC; - server->tsk = current; /* save process info to wake at shutdown */ cFYI(1, ("Demultiplex PID: %d", task_pid_nr(current))); write_lock(&GlobalSMBSeslock); atomic_inc(&tcpSesAllocCount); @@ -651,10 +650,20 @@ multi_t2_fnd: spin_lock(&GlobalMid_Lock); server->tcpStatus = CifsExiting; - server->tsk = NULL; + spin_unlock(&GlobalMid_Lock); + + /* don't exit until kthread_stop is called */ + set_current_state(TASK_UNINTERRUPTIBLE); + while (!kthread_should_stop()) { + schedule(); + set_current_state(TASK_UNINTERRUPTIBLE); + } + set_current_state(TASK_RUNNING); + /* check if we have blocked requests that need to free */ /* Note that cifs_max_pending is normally 50, but can be set at module install time to as little as two */ + spin_lock(&GlobalMid_Lock); if (atomic_read(&server->inFlight) >= cifs_max_pending) atomic_set(&server->inFlight, cifs_max_pending - 1); /* We do not want to set the max_pending too low or we @@ -1318,42 +1327,43 @@ cifs_parse_mount_options(char *options, const char *devname, static struct cifsSesInfo * cifs_find_tcp_session(struct in_addr *target_ip_addr, - struct in6_addr *target_ip6_addr, - char *userName, struct TCP_Server_Info **psrvTcp) + struct in6_addr *target_ip6_addr, + char *userName, struct TCP_Server_Info **psrvTcp) { struct list_head *tmp; struct cifsSesInfo *ses; + *psrvTcp = NULL; - read_lock(&GlobalSMBSeslock); + read_lock(&GlobalSMBSeslock); list_for_each(tmp, &GlobalSMBSessionList) { ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList); - if (ses->server) { - if ((target_ip_addr && - (ses->server->addr.sockAddr.sin_addr.s_addr - == target_ip_addr->s_addr)) || (target_ip6_addr - && memcmp(&ses->server->addr.sockAddr6.sin6_addr, - target_ip6_addr, sizeof(*target_ip6_addr)))) { - /* BB lock server and tcp session and increment - use count here?? */ - - /* found a match on the TCP session */ - *psrvTcp = ses->server; - - /* BB check if reconnection needed */ - if (strncmp - (ses->userName, userName, - MAX_USERNAME_SIZE) == 0){ - read_unlock(&GlobalSMBSeslock); - /* Found exact match on both TCP and - SMB sessions */ - return ses; - } - } + if (!ses->server) + continue; + + if (target_ip_addr && + ses->server->addr.sockAddr.sin_addr.s_addr != target_ip_addr->s_addr) + continue; + else if (target_ip6_addr && + memcmp(&ses->server->addr.sockAddr6.sin6_addr, + target_ip6_addr, sizeof(*target_ip6_addr))) + continue; + /* BB lock server and tcp session; increment use count here?? */ + + /* found a match on the TCP session */ + *psrvTcp = ses->server; + + /* BB check if reconnection needed */ + if (strncmp(ses->userName, userName, MAX_USERNAME_SIZE) == 0) { + read_unlock(&GlobalSMBSeslock); + /* Found exact match on both TCP and + SMB sessions */ + return ses; } /* else tcp and smb sessions need reconnection */ } read_unlock(&GlobalSMBSeslock); + return NULL; } @@ -2186,15 +2196,12 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, srvTcp->tcpStatus = CifsExiting; spin_unlock(&GlobalMid_Lock); if (srvTcp->tsk) { - struct task_struct *tsk; /* If we could verify that kthread_stop would always wake up processes blocked in tcp in recv_mesg then we could remove the send_sig call */ force_sig(SIGKILL, srvTcp->tsk); - tsk = srvTcp->tsk; - if (tsk) - kthread_stop(tsk); + kthread_stop(srvTcp->tsk); } } /* If find_unc succeeded then rc == 0 so we can not end */ @@ -2210,23 +2217,17 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, if ((temp_rc == -ESHUTDOWN) && (pSesInfo->server) && (pSesInfo->server->tsk)) { - struct task_struct *tsk; force_sig(SIGKILL, pSesInfo->server->tsk); - tsk = pSesInfo->server->tsk; - if (tsk) - kthread_stop(tsk); + kthread_stop(pSesInfo->server->tsk); } } else { cFYI(1, ("No session or bad tcon")); if ((pSesInfo->server) && (pSesInfo->server->tsk)) { - struct task_struct *tsk; force_sig(SIGKILL, pSesInfo->server->tsk); - tsk = pSesInfo->server->tsk; - if (tsk) - kthread_stop(tsk); + kthread_stop(pSesInfo->server->tsk); } } sesInfoFree(pSesInfo); diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 6ed775986be9..e4e0078a0526 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -119,6 +119,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, { int rc = -ENOENT; int xid; + int create_options = CREATE_NOT_DIR; int oplock = 0; int desiredAccess = GENERIC_READ | GENERIC_WRITE; __u16 fileHandle; @@ -176,9 +177,19 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, FreeXid(xid); return -ENOMEM; } + + mode &= ~current->fs->umask; + + /* + * if we're not using unix extensions, see if we need to set + * ATTR_READONLY on the create call + */ + if (!pTcon->unix_ext && (mode & S_IWUGO) == 0) + create_options |= CREATE_OPTION_READONLY; + if (cifs_sb->tcon->ses->capabilities & CAP_NT_SMBS) rc = CIFSSMBOpen(xid, pTcon, full_path, disposition, - desiredAccess, CREATE_NOT_DIR, + desiredAccess, create_options, &fileHandle, &oplock, buf, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); else @@ -187,7 +198,7 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, if (rc == -EIO) { /* old server, retry the open legacy style */ rc = SMBLegacyOpen(xid, pTcon, full_path, disposition, - desiredAccess, CREATE_NOT_DIR, + desiredAccess, create_options, &fileHandle, &oplock, buf, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); } @@ -197,7 +208,6 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode, /* If Open reported that we actually created a file then we now have to set the mode if possible */ if ((pTcon->unix_ext) && (oplock & CIFS_CREATE_ACTION)) { - mode &= ~current->fs->umask; if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode, (__u64)current->fsuid, diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 0d9d2e6d7af6..fcbdbb6ad7bf 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -974,8 +974,8 @@ mkdir_get_info: * failed to get it from the server or was set bogus */ if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2)) direntry->d_inode->i_nlink = 2; + mode &= ~current->fs->umask; if (pTcon->unix_ext) { - mode &= ~current->fs->umask; if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) { CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode, @@ -994,9 +994,16 @@ mkdir_get_info: CIFS_MOUNT_MAP_SPECIAL_CHR); } } else { - /* BB to be implemented via Windows secrty descriptors - eg CIFSSMBWinSetPerms(xid, pTcon, full_path, mode, - -1, -1, local_nls); */ + if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) && + (mode & S_IWUGO) == 0) { + FILE_BASIC_INFO pInfo; + memset(&pInfo, 0, sizeof(pInfo)); + pInfo.Attributes = cpu_to_le32(ATTR_READONLY); + CIFSSMBSetTimes(xid, pTcon, full_path, + &pInfo, cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & + CIFS_MOUNT_MAP_SPECIAL_CHR); + } if (direntry->d_inode) { direntry->d_inode->i_mode = mode; direntry->d_inode->i_mode |= S_IFDIR; @@ -1408,18 +1415,19 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) __u64 uid = 0xFFFFFFFFFFFFFFFFULL; __u64 gid = 0xFFFFFFFFFFFFFFFFULL; struct cifsInodeInfo *cifsInode; + struct inode *inode = direntry->d_inode; xid = GetXid(); cFYI(1, ("setattr on file %s attrs->iavalid 0x%x", direntry->d_name.name, attrs->ia_valid)); - cifs_sb = CIFS_SB(direntry->d_inode->i_sb); + cifs_sb = CIFS_SB(inode->i_sb); pTcon = cifs_sb->tcon; if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) == 0) { /* check if we have permission to change attrs */ - rc = inode_change_ok(direntry->d_inode, attrs); + rc = inode_change_ok(inode, attrs); if (rc < 0) { FreeXid(xid); return rc; @@ -1432,7 +1440,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) FreeXid(xid); return -ENOMEM; } - cifsInode = CIFS_I(direntry->d_inode); + cifsInode = CIFS_I(inode); if ((attrs->ia_valid & ATTR_MTIME) || (attrs->ia_valid & ATTR_SIZE)) { /* @@ -1443,9 +1451,9 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) will be truncated anyway? Also, should we error out here if the flush returns error? */ - rc = filemap_write_and_wait(direntry->d_inode->i_mapping); + rc = filemap_write_and_wait(inode->i_mapping); if (rc != 0) { - CIFS_I(direntry->d_inode)->write_behind_rc = rc; + cifsInode->write_behind_rc = rc; rc = 0; } } @@ -1521,9 +1529,8 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) */ if (rc == 0) { - rc = cifs_vmtruncate(direntry->d_inode, attrs->ia_size); - cifs_truncate_page(direntry->d_inode->i_mapping, - direntry->d_inode->i_size); + rc = cifs_vmtruncate(inode, attrs->ia_size); + cifs_truncate_page(inode->i_mapping, inode->i_size); } else goto cifs_setattr_exit; } @@ -1557,7 +1564,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) rc = 0; #ifdef CONFIG_CIFS_EXPERIMENTAL if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) - rc = mode_to_acl(direntry->d_inode, full_path, mode); + rc = mode_to_acl(inode, full_path, mode); else if ((mode & S_IWUGO) == 0) { #else if ((mode & S_IWUGO) == 0) { @@ -1665,7 +1672,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs) /* do not need local check to inode_check_ok since the server does that */ if (!rc) - rc = inode_setattr(direntry->d_inode, attrs); + rc = inode_setattr(inode, attrs); cifs_setattr_exit: kfree(full_path); FreeXid(xid); diff --git a/fs/dquot.c b/fs/dquot.c index dfba1623cccb..5ac77da19959 100644 --- a/fs/dquot.c +++ b/fs/dquot.c @@ -1491,6 +1491,16 @@ int vfs_quota_off(struct super_block *sb, int type, int remount) /* We need to serialize quota_off() for device */ mutex_lock(&dqopt->dqonoff_mutex); + + /* + * Skip everything if there's nothing to do. We have to do this because + * sometimes we are called when fill_super() failed and calling + * sync_fs() in such cases does no good. + */ + if (!sb_any_quota_enabled(sb) && !sb_any_quota_suspended(sb)) { + mutex_unlock(&dqopt->dqonoff_mutex); + return 0; + } for (cnt = 0; cnt < MAXQUOTAS; cnt++) { toputinode[cnt] = NULL; if (type != -1 && cnt != type) diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 0a1397335a8e..c92cc1c00aae 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -37,17 +37,11 @@ static struct dentry *lock_parent(struct dentry *dentry) { struct dentry *dir; - dir = dget(dentry->d_parent); + dir = dget_parent(dentry); mutex_lock_nested(&(dir->d_inode->i_mutex), I_MUTEX_PARENT); return dir; } -static void unlock_parent(struct dentry *dentry) -{ - mutex_unlock(&(dentry->d_parent->d_inode->i_mutex)); - dput(dentry->d_parent); -} - static void unlock_dir(struct dentry *dir) { mutex_unlock(&dir->d_inode->i_mutex); @@ -426,8 +420,9 @@ static int ecryptfs_unlink(struct inode *dir, struct dentry *dentry) int rc = 0; struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry); struct inode *lower_dir_inode = ecryptfs_inode_to_lower(dir); + struct dentry *lower_dir_dentry; - lock_parent(lower_dentry); + lower_dir_dentry = lock_parent(lower_dentry); rc = vfs_unlink(lower_dir_inode, lower_dentry); if (rc) { printk(KERN_ERR "Error in vfs_unlink; rc = [%d]\n", rc); @@ -439,7 +434,7 @@ static int ecryptfs_unlink(struct inode *dir, struct dentry *dentry) dentry->d_inode->i_ctime = dir->i_ctime; d_drop(dentry); out_unlock: - unlock_parent(lower_dentry); + unlock_dir(lower_dir_dentry); return rc; } diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c index 788995efd1d3..6560da1a58ce 100644 --- a/fs/ecryptfs/miscdev.c +++ b/fs/ecryptfs/miscdev.c @@ -257,12 +257,14 @@ ecryptfs_miscdev_read(struct file *file, char __user *buf, size_t count, mutex_lock(&daemon->mux); if (daemon->flags & ECRYPTFS_DAEMON_ZOMBIE) { rc = 0; + mutex_unlock(&ecryptfs_daemon_hash_mux); printk(KERN_WARNING "%s: Attempt to read from zombified " "daemon\n", __func__); goto out_unlock_daemon; } if (daemon->flags & ECRYPTFS_DAEMON_IN_READ) { rc = 0; + mutex_unlock(&ecryptfs_daemon_hash_mux); goto out_unlock_daemon; } /* This daemon will not go away so long as this flag is set */ diff --git a/fs/exec.c b/fs/exec.c index aeaa9791d8be..1f8a24aa1f8b 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -736,7 +736,7 @@ static int exec_mmap(struct mm_struct *mm) tsk->active_mm = mm; activate_mm(active_mm, mm); task_unlock(tsk); - mm_update_next_owner(mm); + mm_update_next_owner(old_mm); arch_pick_mmap_layout(mm); if (old_mm) { up_read(&old_mm->mmap_sem); diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c index d4a4f0e9ff69..175414ac2210 100644 --- a/fs/ext3/xattr.c +++ b/fs/ext3/xattr.c @@ -1000,6 +1000,11 @@ ext3_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index, i.value = NULL; error = ext3_xattr_block_set(handle, inode, &i, &bs); } else if (error == -ENOSPC) { + if (EXT3_I(inode)->i_file_acl && !bs.s.base) { + error = ext3_xattr_block_find(inode, &i, &bs); + if (error) + goto cleanup; + } error = ext3_xattr_block_set(handle, inode, &i, &bs); if (error) goto cleanup; diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index da994374ec3b..30494c5da843 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -287,11 +287,11 @@ read_block_bitmap(struct super_block *sb, ext4_group_t block_group) (int)block_group, (unsigned long long)bitmap_blk); return NULL; } - if (!ext4_valid_block_bitmap(sb, desc, block_group, bh)) { - put_bh(bh); - return NULL; - } - + ext4_valid_block_bitmap(sb, desc, block_group, bh); + /* + * file system mounted not to panic on error, + * continue with corrupt bitmap + */ return bh; } /* @@ -1770,7 +1770,12 @@ allocated: "Allocating block in system zone - " "blocks from %llu, length %lu", ret_block, num); - goto out; + /* + * claim_block marked the blocks we allocated + * as in use. So we may want to selectively + * mark some of the blocks as free + */ + goto retry_alloc; } performed_allocation = 1; diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index fbec2ef93797..873ad9b3418c 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -2639,8 +2639,7 @@ static int ext4_mb_init_per_dev_proc(struct super_block *sb) struct proc_dir_entry *proc; char devname[64]; - snprintf(devname, sizeof(devname) - 1, "%s", - bdevname(sb->s_bdev, devname)); + bdevname(sb->s_bdev, devname); sbi->s_mb_proc = proc_mkdir(devname, proc_root_ext4); MB_PROC_HANDLER(EXT4_MB_STATS_NAME, stats); @@ -2674,8 +2673,7 @@ static int ext4_mb_destroy_per_dev_proc(struct super_block *sb) if (sbi->s_mb_proc == NULL) return -EINVAL; - snprintf(devname, sizeof(devname) - 1, "%s", - bdevname(sb->s_bdev, devname)); + bdevname(sb->s_bdev, devname); remove_proc_entry(EXT4_MB_GROUP_PREALLOC, sbi->s_mb_proc); remove_proc_entry(EXT4_MB_STREAM_REQ, sbi->s_mb_proc); remove_proc_entry(EXT4_MB_ORDER2_REQ, sbi->s_mb_proc); @@ -2738,7 +2736,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac, struct ext4_sb_info *sbi; struct super_block *sb; ext4_fsblk_t block; - int err; + int err, len; BUG_ON(ac->ac_status != AC_STATUS_FOUND); BUG_ON(ac->ac_b_ex.fe_len <= 0); @@ -2772,14 +2770,27 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac, + ac->ac_b_ex.fe_start + le32_to_cpu(es->s_first_data_block); - if (block == ext4_block_bitmap(sb, gdp) || - block == ext4_inode_bitmap(sb, gdp) || - in_range(block, ext4_inode_table(sb, gdp), - EXT4_SB(sb)->s_itb_per_group)) { - + len = ac->ac_b_ex.fe_len; + if (in_range(ext4_block_bitmap(sb, gdp), block, len) || + in_range(ext4_inode_bitmap(sb, gdp), block, len) || + in_range(block, ext4_inode_table(sb, gdp), + EXT4_SB(sb)->s_itb_per_group) || + in_range(block + len - 1, ext4_inode_table(sb, gdp), + EXT4_SB(sb)->s_itb_per_group)) { ext4_error(sb, __func__, "Allocating block in system zone - block = %llu", block); + /* File system mounted not to panic on error + * Fix the bitmap and repeat the block allocation + * We leak some of the blocks here. + */ + mb_set_bits(sb_bgl_lock(sbi, ac->ac_b_ex.fe_group), + bitmap_bh->b_data, ac->ac_b_ex.fe_start, + ac->ac_b_ex.fe_len); + err = ext4_journal_dirty_metadata(handle, bitmap_bh); + if (!err) + err = -EAGAIN; + goto out_err; } #ifdef AGGRESSIVE_CHECK { @@ -2882,12 +2893,11 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac, if (size < i_size_read(ac->ac_inode)) size = i_size_read(ac->ac_inode); - /* max available blocks in a free group */ - max = EXT4_BLOCKS_PER_GROUP(ac->ac_sb) - 1 - 1 - - EXT4_SB(ac->ac_sb)->s_itb_per_group; + /* max size of free chunks */ + max = 2 << bsbits; -#define NRL_CHECK_SIZE(req, size, max,bits) \ - (req <= (size) || max <= ((size) >> bits)) +#define NRL_CHECK_SIZE(req, size, max, chunk_size) \ + (req <= (size) || max <= (chunk_size)) /* first, try to predict filesize */ /* XXX: should this table be tunable? */ @@ -2906,16 +2916,16 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac, size = 512 * 1024; } else if (size <= 1024 * 1024) { size = 1024 * 1024; - } else if (NRL_CHECK_SIZE(size, 4 * 1024 * 1024, max, bsbits)) { + } else if (NRL_CHECK_SIZE(size, 4 * 1024 * 1024, max, 2 * 1024)) { start_off = ((loff_t)ac->ac_o_ex.fe_logical >> - (20 - bsbits)) << 20; - size = 1024 * 1024; - } else if (NRL_CHECK_SIZE(size, 8 * 1024 * 1024, max, bsbits)) { + (21 - bsbits)) << 21; + size = 2 * 1024 * 1024; + } else if (NRL_CHECK_SIZE(size, 8 * 1024 * 1024, max, 4 * 1024)) { start_off = ((loff_t)ac->ac_o_ex.fe_logical >> (22 - bsbits)) << 22; size = 4 * 1024 * 1024; } else if (NRL_CHECK_SIZE(ac->ac_o_ex.fe_len, - (8<<20)>>bsbits, max, bsbits)) { + (8<<20)>>bsbits, max, 8 * 1024)) { start_off = ((loff_t)ac->ac_o_ex.fe_logical >> (23 - bsbits)) << 23; size = 8 * 1024 * 1024; @@ -4035,7 +4045,6 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle, ac->ac_op = EXT4_MB_HISTORY_ALLOC; ext4_mb_normalize_request(ac, ar); - repeat: /* allocate space in core */ ext4_mb_regular_allocator(ac); @@ -4049,10 +4058,21 @@ repeat: } if (likely(ac->ac_status == AC_STATUS_FOUND)) { - ext4_mb_mark_diskspace_used(ac, handle); - *errp = 0; - block = ext4_grp_offs_to_block(sb, &ac->ac_b_ex); - ar->len = ac->ac_b_ex.fe_len; + *errp = ext4_mb_mark_diskspace_used(ac, handle); + if (*errp == -EAGAIN) { + ac->ac_b_ex.fe_group = 0; + ac->ac_b_ex.fe_start = 0; + ac->ac_b_ex.fe_len = 0; + ac->ac_status = AC_STATUS_CONTINUE; + goto repeat; + } else if (*errp) { + ac->ac_b_ex.fe_len = 0; + ar->len = 0; + ext4_mb_show_ac(ac); + } else { + block = ext4_grp_offs_to_block(sb, &ac->ac_b_ex); + ar->len = ac->ac_b_ex.fe_len; + } } else { freed = ext4_mb_discard_preallocations(sb, ac->ac_o_ex.fe_len); if (freed) @@ -4239,6 +4259,8 @@ do_more: ext4_error(sb, __func__, "Freeing blocks in system zone - " "Block = %lu, count = %lu", block, count); + /* err = 0. ext4_std_error should be a no op */ + goto error_return; } BUFFER_TRACE(bitmap_bh, "getting write access"); diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 52dd0679a4e2..09d9359c8055 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -979,7 +979,7 @@ static int parse_options (char *options, struct super_block *sb, int data_opt = 0; int option; #ifdef CONFIG_QUOTA - int qtype; + int qtype, qfmt; char *qname; #endif @@ -1162,9 +1162,11 @@ static int parse_options (char *options, struct super_block *sb, case Opt_grpjquota: qtype = GRPQUOTA; set_qf_name: - if (sb_any_quota_enabled(sb)) { + if ((sb_any_quota_enabled(sb) || + sb_any_quota_suspended(sb)) && + !sbi->s_qf_names[qtype]) { printk(KERN_ERR - "EXT4-fs: Cannot change journalled " + "EXT4-fs: Cannot change journaled " "quota options when quota turned on.\n"); return 0; } @@ -1200,9 +1202,11 @@ set_qf_name: case Opt_offgrpjquota: qtype = GRPQUOTA; clear_qf_name: - if (sb_any_quota_enabled(sb)) { + if ((sb_any_quota_enabled(sb) || + sb_any_quota_suspended(sb)) && + sbi->s_qf_names[qtype]) { printk(KERN_ERR "EXT4-fs: Cannot change " - "journalled quota options when " + "journaled quota options when " "quota turned on.\n"); return 0; } @@ -1213,10 +1217,20 @@ clear_qf_name: sbi->s_qf_names[qtype] = NULL; break; case Opt_jqfmt_vfsold: - sbi->s_jquota_fmt = QFMT_VFS_OLD; - break; + qfmt = QFMT_VFS_OLD; + goto set_qf_format; case Opt_jqfmt_vfsv0: - sbi->s_jquota_fmt = QFMT_VFS_V0; + qfmt = QFMT_VFS_V0; +set_qf_format: + if ((sb_any_quota_enabled(sb) || + sb_any_quota_suspended(sb)) && + sbi->s_jquota_fmt != qfmt) { + printk(KERN_ERR "EXT4-fs: Cannot change " + "journaled quota options when " + "quota turned on.\n"); + return 0; + } + sbi->s_jquota_fmt = qfmt; break; case Opt_quota: case Opt_usrquota: @@ -1241,6 +1255,9 @@ clear_qf_name: case Opt_quota: case Opt_usrquota: case Opt_grpquota: + printk(KERN_ERR + "EXT4-fs: quota options not supported.\n"); + break; case Opt_usrjquota: case Opt_grpjquota: case Opt_offusrjquota: @@ -1248,7 +1265,7 @@ clear_qf_name: case Opt_jqfmt_vfsold: case Opt_jqfmt_vfsv0: printk(KERN_ERR - "EXT4-fs: journalled quota options not " + "EXT4-fs: journaled quota options not " "supported.\n"); break; case Opt_noquota: @@ -1333,14 +1350,14 @@ clear_qf_name: } if (!sbi->s_jquota_fmt) { - printk(KERN_ERR "EXT4-fs: journalled quota format " + printk(KERN_ERR "EXT4-fs: journaled quota format " "not specified.\n"); return 0; } } else { if (sbi->s_jquota_fmt) { - printk(KERN_ERR "EXT4-fs: journalled quota format " - "specified with no journalling " + printk(KERN_ERR "EXT4-fs: journaled quota format " + "specified with no journaling " "enabled.\n"); return 0; } @@ -1581,7 +1598,7 @@ static void ext4_orphan_cleanup (struct super_block * sb, int ret = ext4_quota_on_mount(sb, i); if (ret < 0) printk(KERN_ERR - "EXT4-fs: Cannot turn on journalled " + "EXT4-fs: Cannot turn on journaled " "quota: error %d\n", ret); } } @@ -3106,7 +3123,7 @@ static int ext4_release_dquot(struct dquot *dquot) static int ext4_mark_dquot_dirty(struct dquot *dquot) { - /* Are we journalling quotas? */ + /* Are we journaling quotas? */ if (EXT4_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] || EXT4_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) { dquot_mark_dquot_dirty(dquot); @@ -3153,23 +3170,42 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id, if (!test_opt(sb, QUOTA)) return -EINVAL; - /* Not journalling quota? */ - if ((!EXT4_SB(sb)->s_qf_names[USRQUOTA] && - !EXT4_SB(sb)->s_qf_names[GRPQUOTA]) || remount) + /* When remounting, no checks are needed and in fact, path is NULL */ + if (remount) return vfs_quota_on(sb, type, format_id, path, remount); + err = path_lookup(path, LOOKUP_FOLLOW, &nd); if (err) return err; + /* Quotafile not on the same filesystem? */ if (nd.path.mnt->mnt_sb != sb) { path_put(&nd.path); return -EXDEV; } - /* Quotafile not of fs root? */ - if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode) - printk(KERN_WARNING - "EXT4-fs: Quota file not on filesystem root. " - "Journalled quota will not work.\n"); + /* Journaling quota? */ + if (EXT4_SB(sb)->s_qf_names[type]) { + /* Quotafile not of fs root? */ + if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode) + printk(KERN_WARNING + "EXT4-fs: Quota file not on filesystem root. " + "Journaled quota will not work.\n"); + } + + /* + * When we journal data on quota file, we have to flush journal to see + * all updates to the file when we bypass pagecache... + */ + if (ext4_should_journal_data(nd.path.dentry->d_inode)) { + /* + * We don't need to lock updates but journal_flush() could + * otherwise be livelocked... + */ + jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal); + jbd2_journal_flush(EXT4_SB(sb)->s_journal); + jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal); + } + path_put(&nd.path); return vfs_quota_on(sb, type, format_id, path, remount); } diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 3fbc2c6c3d0e..ff08633f398e 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -1009,6 +1009,11 @@ ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index, i.value = NULL; error = ext4_xattr_block_set(handle, inode, &i, &bs); } else if (error == -ENOSPC) { + if (EXT4_I(inode)->i_file_acl && !bs.s.base) { + error = ext4_xattr_block_find(inode, &i, &bs); + if (error) + goto cleanup; + } error = ext4_xattr_block_set(handle, inode, &i, &bs); if (error) goto cleanup; diff --git a/fs/fuse/file.c b/fs/fuse/file.c index f28cf8b46f80..8092f0d9fd1f 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -804,6 +804,8 @@ static ssize_t fuse_fill_write_pages(struct fuse_req *req, if (offset == PAGE_CACHE_SIZE) offset = 0; + if (!fc->big_writes) + break; } while (iov_iter_count(ii) && count < fc->max_write && req->num_pages < FUSE_MAX_PAGES_PER_REQ && offset == 0); diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index dadffa21a206..bae948657c4f 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -404,6 +404,9 @@ struct fuse_conn { /** Is bmap not implemented by fs? */ unsigned no_bmap : 1; + /** Do multi-page cached writes */ + unsigned big_writes : 1; + /** The number of requests waiting for completion */ atomic_t num_waiting; diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 79b615873838..fb77e0962132 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -576,6 +576,8 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req) fc->no_lock = 1; if (arg->flags & FUSE_ATOMIC_O_TRUNC) fc->atomic_o_trunc = 1; + if (arg->flags & FUSE_BIG_WRITES) + fc->big_writes = 1; } else { ra_pages = fc->max_read / PAGE_CACHE_SIZE; fc->no_lock = 1; @@ -599,7 +601,8 @@ static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req) arg->major = FUSE_KERNEL_VERSION; arg->minor = FUSE_KERNEL_MINOR_VERSION; arg->max_readahead = fc->bdi.ra_pages * PAGE_CACHE_SIZE; - arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS | FUSE_ATOMIC_O_TRUNC; + arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS | FUSE_ATOMIC_O_TRUNC | + FUSE_BIG_WRITES; req->in.h.opcode = FUSE_INIT; req->in.numargs = 1; req->in.args[0].size = sizeof(*arg); diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c index d53b2af91c25..67e1c8b467c4 100644 --- a/fs/hfsplus/inode.c +++ b/fs/hfsplus/inode.c @@ -65,6 +65,8 @@ static int hfsplus_releasepage(struct page *page, gfp_t mask) BUG(); return 0; } + if (!tree) + return 0; if (tree->node_size >= PAGE_CACHE_SIZE) { nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT); spin_lock(&tree->hash_lock); diff --git a/fs/hppfs/Makefile b/fs/hppfs/Makefile index 6890433f7595..8a1f50344368 100644 --- a/fs/hppfs/Makefile +++ b/fs/hppfs/Makefile @@ -1,9 +1,9 @@ # -# Copyright (C) 2002, 2003 Jeff Dike (jdike@karaya.com) +# Copyright (C) 2002 - 2008 Jeff Dike (jdike@{addtoit,linux.intel}.com) # Licensed under the GPL # -hppfs-objs := hppfs_kern.o +hppfs-objs := hppfs.o obj-y = -obj-$(CONFIG_HPPFS) += hppfs.o +obj-$(CONFIG_HPPFS) += $(hppfs-objs) diff --git a/fs/hppfs/hppfs_kern.c b/fs/hppfs/hppfs.c index 8601d8ef3b55..65077aa90f0a 100644 --- a/fs/hppfs/hppfs_kern.c +++ b/fs/hppfs/hppfs.c @@ -33,7 +33,7 @@ struct hppfs_private { }; struct hppfs_inode_info { - struct dentry *proc_dentry; + struct dentry *proc_dentry; struct inode vfs_inode; }; @@ -52,7 +52,7 @@ static int is_pid(struct dentry *dentry) int i; sb = dentry->d_sb; - if ((sb->s_op != &hppfs_sbops) || (dentry->d_parent != sb->s_root)) + if (dentry->d_parent != sb->s_root) return 0; for (i = 0; i < dentry->d_name.len; i++) { @@ -136,7 +136,7 @@ static int file_removed(struct dentry *dentry, const char *file) } static struct dentry *hppfs_lookup(struct inode *ino, struct dentry *dentry, - struct nameidata *nd) + struct nameidata *nd) { struct dentry *proc_dentry, *new, *parent; struct inode *inode; @@ -254,6 +254,8 @@ static ssize_t hppfs_read(struct file *file, char __user *buf, size_t count, int err; if (hppfs->contents != NULL) { + int rem; + if (*ppos >= hppfs->len) return 0; @@ -267,8 +269,10 @@ static ssize_t hppfs_read(struct file *file, char __user *buf, size_t count, if (off + count > hppfs->len) count = hppfs->len - off; - copy_to_user(buf, &data->contents[off], count); - *ppos += count; + rem = copy_to_user(buf, &data->contents[off], count); + *ppos += count - rem; + if (rem > 0) + return -EFAULT; } else if (hppfs->host_fd != -1) { err = os_seek_file(hppfs->host_fd, *ppos); if (err) { @@ -285,21 +289,15 @@ static ssize_t hppfs_read(struct file *file, char __user *buf, size_t count, return count; } -static ssize_t hppfs_write(struct file *file, const char __user *buf, size_t len, - loff_t *ppos) +static ssize_t hppfs_write(struct file *file, const char __user *buf, + size_t len, loff_t *ppos) { struct hppfs_private *data = file->private_data; struct file *proc_file = data->proc_file; ssize_t (*write)(struct file *, const char __user *, size_t, loff_t *); - int err; write = proc_file->f_path.dentry->d_inode->i_fop->write; - - proc_file->f_pos = file->f_pos; - err = (*write)(proc_file, buf, len, &proc_file->f_pos); - file->f_pos = proc_file->f_pos; - - return err; + return (*write)(proc_file, buf, len, ppos); } static int open_host_sock(char *host_file, int *filter_out) @@ -357,7 +355,7 @@ static struct hppfs_data *hppfs_get_data(int fd, int filter, if (filter) { while ((n = read_proc(proc_file, data->contents, - sizeof(data->contents), NULL, 0)) > 0) + sizeof(data->contents), NULL, 0)) > 0) os_write_file(fd, data->contents, n); err = os_shutdown_socket(fd, 0, 1); if (err) { @@ -429,8 +427,8 @@ static int file_mode(int fmode) static int hppfs_open(struct inode *inode, struct file *file) { struct hppfs_private *data; - struct dentry *proc_dentry; struct vfsmount *proc_mnt; + struct dentry *proc_dentry; char *host_file; int err, fd, type, filter; @@ -492,8 +490,8 @@ static int hppfs_open(struct inode *inode, struct file *file) static int hppfs_dir_open(struct inode *inode, struct file *file) { struct hppfs_private *data; - struct dentry *proc_dentry; struct vfsmount *proc_mnt; + struct dentry *proc_dentry; int err; err = -ENOMEM; @@ -620,6 +618,9 @@ static struct inode *hppfs_alloc_inode(struct super_block *sb) void hppfs_delete_inode(struct inode *ino) { + dput(HPPFS_I(ino)->proc_dentry); + mntput(ino->i_sb->s_fs_info); + clear_inode(ino); } @@ -628,69 +629,46 @@ static void hppfs_destroy_inode(struct inode *inode) kfree(HPPFS_I(inode)); } -static void hppfs_put_super(struct super_block *sb) -{ - mntput(sb->s_fs_info); -} - static const struct super_operations hppfs_sbops = { .alloc_inode = hppfs_alloc_inode, .destroy_inode = hppfs_destroy_inode, .delete_inode = hppfs_delete_inode, .statfs = hppfs_statfs, - .put_super = hppfs_put_super, }; static int hppfs_readlink(struct dentry *dentry, char __user *buffer, int buflen) { - struct file *proc_file; struct dentry *proc_dentry; - struct vfsmount *proc_mnt; - int ret; proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry; - proc_mnt = dentry->d_sb->s_fs_info; - - proc_file = dentry_open(dget(proc_dentry), mntget(proc_mnt), O_RDONLY); - if (IS_ERR(proc_file)) - return PTR_ERR(proc_file); - - ret = proc_dentry->d_inode->i_op->readlink(proc_dentry, buffer, buflen); - - fput(proc_file); - - return ret; + return proc_dentry->d_inode->i_op->readlink(proc_dentry, buffer, + buflen); } -static void* hppfs_follow_link(struct dentry *dentry, struct nameidata *nd) +static void *hppfs_follow_link(struct dentry *dentry, struct nameidata *nd) { - struct file *proc_file; struct dentry *proc_dentry; - struct vfsmount *proc_mnt; - void *ret; proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry; - proc_mnt = dentry->d_sb->s_fs_info; - - proc_file = dentry_open(dget(proc_dentry), mntget(proc_mnt), O_RDONLY); - if (IS_ERR(proc_file)) - return proc_file; - - ret = proc_dentry->d_inode->i_op->follow_link(proc_dentry, nd); - fput(proc_file); + return proc_dentry->d_inode->i_op->follow_link(proc_dentry, nd); +} - return ret; +int hppfs_permission(struct inode *inode, int mask, struct nameidata *nd) +{ + return generic_permission(inode, mask, NULL); } static const struct inode_operations hppfs_dir_iops = { .lookup = hppfs_lookup, + .permission = hppfs_permission, }; static const struct inode_operations hppfs_link_iops = { .readlink = hppfs_readlink, .follow_link = hppfs_follow_link, + .permission = hppfs_permission, }; static struct inode *get_inode(struct super_block *sb, struct dentry *dentry) @@ -712,7 +690,7 @@ static struct inode *get_inode(struct super_block *sb, struct dentry *dentry) inode->i_fop = &hppfs_file_fops; } - HPPFS_I(inode)->proc_dentry = dentry; + HPPFS_I(inode)->proc_dentry = dget(dentry); inode->i_uid = proc_ino->i_uid; inode->i_gid = proc_ino->i_gid; @@ -725,7 +703,7 @@ static struct inode *get_inode(struct super_block *sb, struct dentry *dentry) inode->i_size = proc_ino->i_size; inode->i_blocks = proc_ino->i_blocks; - return 0; + return inode; } static int hppfs_fill_super(struct super_block *sb, void *d, int silent) diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c index cd931ef1f000..5a8ca61498ca 100644 --- a/fs/jbd/commit.c +++ b/fs/jbd/commit.c @@ -470,7 +470,9 @@ void journal_commit_transaction(journal_t *journal) * transaction! Now comes the tricky part: we need to write out * metadata. Loop over the transaction's entire buffer list: */ + spin_lock(&journal->j_state_lock); commit_transaction->t_state = T_COMMIT; + spin_unlock(&journal->j_state_lock); J_ASSERT(commit_transaction->t_nr_buffers <= commit_transaction->t_outstanding_credits); diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index e0139786f717..4d99685fdce4 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -560,7 +560,9 @@ void jbd2_journal_commit_transaction(journal_t *journal) * transaction! Now comes the tricky part: we need to write out * metadata. Loop over the transaction's entire buffer list: */ + spin_lock(&journal->j_state_lock); commit_transaction->t_state = T_COMMIT; + spin_unlock(&journal->j_state_lock); stats.u.run.rs_logging = jiffies; stats.u.run.rs_flushing = jbd2_time_diff(stats.u.run.rs_flushing, diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 53632e3e8457..2e24567c4a79 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -901,7 +901,7 @@ static void jbd2_stats_proc_init(journal_t *journal) { char name[BDEVNAME_SIZE]; - snprintf(name, sizeof(name) - 1, "%s", bdevname(journal->j_dev, name)); + bdevname(journal->j_dev, name); journal->j_proc_entry = proc_mkdir(name, proc_jbd2_stats); if (journal->j_proc_entry) { proc_create_data("history", S_IRUGO, journal->j_proc_entry, @@ -915,7 +915,7 @@ static void jbd2_stats_proc_exit(journal_t *journal) { char name[BDEVNAME_SIZE]; - snprintf(name, sizeof(name) - 1, "%s", bdevname(journal->j_dev, name)); + bdevname(journal->j_dev, name); remove_proc_entry("info", journal->j_proc_entry); remove_proc_entry("history", journal->j_proc_entry); remove_proc_entry(name, proc_jbd2_stats); diff --git a/fs/proc/array.c b/fs/proc/array.c index dca997a93bff..9e3b8c33c24b 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -298,6 +298,7 @@ static inline void task_cap(struct seq_file *m, struct task_struct *p) render_cap_t(m, "CapInh:\t", &p->cap_inheritable); render_cap_t(m, "CapPrm:\t", &p->cap_permitted); render_cap_t(m, "CapEff:\t", &p->cap_effective); + render_cap_t(m, "CapBnd:\t", &p->cap_bset); } static inline void task_context_switch_counts(struct seq_file *m, diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h index 244a1aaa940e..11c035168ea6 100644 --- a/fs/ufs/ufs.h +++ b/fs/ufs/ufs.h @@ -107,7 +107,6 @@ extern struct inode * ufs_new_inode (struct inode *, int); /* inode.c */ extern struct inode *ufs_iget(struct super_block *, unsigned long); -extern void ufs_put_inode (struct inode *); extern int ufs_write_inode (struct inode *, int); extern int ufs_sync_inode (struct inode *); extern void ufs_delete_inode (struct inode *); |