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-rw-r--r--fs/binfmt_elf.c8
-rw-r--r--fs/binfmt_elf_fdpic.c8
-rw-r--r--fs/eventpoll.c21
-rw-r--r--fs/ext2/dir.c5
-rw-r--r--fs/ext2/ext2.h2
-rw-r--r--fs/ext2/namei.c5
-rw-r--r--fs/ext3/inode.c22
-rw-r--r--fs/isofs/dir.c5
-rw-r--r--fs/isofs/inode.c118
-rw-r--r--fs/isofs/isofs.h27
-rw-r--r--fs/isofs/namei.c4
-rw-r--r--fs/jbd/transaction.c48
-rw-r--r--fs/proc/Makefile1
-rw-r--r--fs/proc/proc_devtree.c10
-rw-r--r--fs/proc/softirqs.c44
-rw-r--r--fs/proc/stat.c15
-rw-r--r--fs/proc/vmcore.c7
-rw-r--r--fs/reiserfs/do_balan.c5
-rw-r--r--fs/reiserfs/lbalance.c10
-rw-r--r--fs/seq_file.c20
-rw-r--r--fs/ufs/inode.c10
21 files changed, 227 insertions, 168 deletions
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 40381df34869..9fa212b014a5 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1340,8 +1340,10 @@ static void fill_prstatus(struct elf_prstatus *prstatus,
prstatus->pr_info.si_signo = prstatus->pr_cursig = signr;
prstatus->pr_sigpend = p->pending.signal.sig[0];
prstatus->pr_sighold = p->blocked.sig[0];
+ rcu_read_lock();
+ prstatus->pr_ppid = task_pid_vnr(rcu_dereference(p->real_parent));
+ rcu_read_unlock();
prstatus->pr_pid = task_pid_vnr(p);
- prstatus->pr_ppid = task_pid_vnr(p->real_parent);
prstatus->pr_pgrp = task_pgrp_vnr(p);
prstatus->pr_sid = task_session_vnr(p);
if (thread_group_leader(p)) {
@@ -1382,8 +1384,10 @@ static int fill_psinfo(struct elf_prpsinfo *psinfo, struct task_struct *p,
psinfo->pr_psargs[i] = ' ';
psinfo->pr_psargs[len] = 0;
+ rcu_read_lock();
+ psinfo->pr_ppid = task_pid_vnr(rcu_dereference(p->real_parent));
+ rcu_read_unlock();
psinfo->pr_pid = task_pid_vnr(p);
- psinfo->pr_ppid = task_pid_vnr(p->real_parent);
psinfo->pr_pgrp = task_pgrp_vnr(p);
psinfo->pr_sid = task_session_vnr(p);
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index fdb66faa24f1..20fbeced472b 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1387,8 +1387,10 @@ static void fill_prstatus(struct elf_prstatus *prstatus,
prstatus->pr_info.si_signo = prstatus->pr_cursig = signr;
prstatus->pr_sigpend = p->pending.signal.sig[0];
prstatus->pr_sighold = p->blocked.sig[0];
+ rcu_read_lock();
+ prstatus->pr_ppid = task_pid_vnr(rcu_dereference(p->real_parent));
+ rcu_read_unlock();
prstatus->pr_pid = task_pid_vnr(p);
- prstatus->pr_ppid = task_pid_vnr(p->real_parent);
prstatus->pr_pgrp = task_pgrp_vnr(p);
prstatus->pr_sid = task_session_vnr(p);
if (thread_group_leader(p)) {
@@ -1432,8 +1434,10 @@ static int fill_psinfo(struct elf_prpsinfo *psinfo, struct task_struct *p,
psinfo->pr_psargs[i] = ' ';
psinfo->pr_psargs[len] = 0;
+ rcu_read_lock();
+ psinfo->pr_ppid = task_pid_vnr(rcu_dereference(p->real_parent));
+ rcu_read_unlock();
psinfo->pr_pid = task_pid_vnr(p);
- psinfo->pr_ppid = task_pid_vnr(p->real_parent);
psinfo->pr_pgrp = task_pgrp_vnr(p);
psinfo->pr_sid = task_session_vnr(p);
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 5458e80fc558..085c5c063420 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -98,7 +98,7 @@ struct epoll_filefd {
struct nested_call_node {
struct list_head llink;
void *cookie;
- int cpu;
+ void *ctx;
};
/*
@@ -317,17 +317,17 @@ static void ep_nested_calls_init(struct nested_calls *ncalls)
* @nproc: Nested call core function pointer.
* @priv: Opaque data to be passed to the @nproc callback.
* @cookie: Cookie to be used to identify this nested call.
+ * @ctx: This instance context.
*
* Returns: Returns the code returned by the @nproc callback, or -1 if
* the maximum recursion limit has been exceeded.
*/
static int ep_call_nested(struct nested_calls *ncalls, int max_nests,
int (*nproc)(void *, void *, int), void *priv,
- void *cookie)
+ void *cookie, void *ctx)
{
int error, call_nests = 0;
unsigned long flags;
- int this_cpu = get_cpu();
struct list_head *lsthead = &ncalls->tasks_call_list;
struct nested_call_node *tncur;
struct nested_call_node tnode;
@@ -340,7 +340,7 @@ static int ep_call_nested(struct nested_calls *ncalls, int max_nests,
* very much limited.
*/
list_for_each_entry(tncur, lsthead, llink) {
- if (tncur->cpu == this_cpu &&
+ if (tncur->ctx == ctx &&
(tncur->cookie == cookie || ++call_nests > max_nests)) {
/*
* Ops ... loop detected or maximum nest level reached.
@@ -352,7 +352,7 @@ static int ep_call_nested(struct nested_calls *ncalls, int max_nests,
}
/* Add the current task and cookie to the list */
- tnode.cpu = this_cpu;
+ tnode.ctx = ctx;
tnode.cookie = cookie;
list_add(&tnode.llink, lsthead);
@@ -364,10 +364,9 @@ static int ep_call_nested(struct nested_calls *ncalls, int max_nests,
/* Remove the current task from the list */
spin_lock_irqsave(&ncalls->lock, flags);
list_del(&tnode.llink);
- out_unlock:
+out_unlock:
spin_unlock_irqrestore(&ncalls->lock, flags);
- put_cpu();
return error;
}
@@ -408,8 +407,12 @@ static int ep_poll_wakeup_proc(void *priv, void *cookie, int call_nests)
*/
static void ep_poll_safewake(wait_queue_head_t *wq)
{
+ int this_cpu = get_cpu();
+
ep_call_nested(&poll_safewake_ncalls, EP_MAX_NESTS,
- ep_poll_wakeup_proc, NULL, wq);
+ ep_poll_wakeup_proc, NULL, wq, (void *) (long) this_cpu);
+
+ put_cpu();
}
/*
@@ -663,7 +666,7 @@ static unsigned int ep_eventpoll_poll(struct file *file, poll_table *wait)
* could re-enter here.
*/
pollflags = ep_call_nested(&poll_readywalk_ncalls, EP_MAX_NESTS,
- ep_poll_readyevents_proc, ep, ep);
+ ep_poll_readyevents_proc, ep, ep, current);
return pollflags != -1 ? pollflags : 0;
}
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index 003500498c22..6cde970b0a1a 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -450,7 +450,7 @@ ino_t ext2_inode_by_name(struct inode *dir, struct qstr *child)
/* Releases the page */
void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,
- struct page *page, struct inode *inode)
+ struct page *page, struct inode *inode, int update_times)
{
loff_t pos = page_offset(page) +
(char *) de - (char *) page_address(page);
@@ -465,7 +465,8 @@ void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,
ext2_set_de_type(de, inode);
err = ext2_commit_chunk(page, pos, len);
ext2_put_page(page);
- dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
+ if (update_times)
+ dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
EXT2_I(dir)->i_flags &= ~EXT2_BTREE_FL;
mark_inode_dirty(dir);
}
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index f2e5811936d0..d988a718aedb 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -111,7 +111,7 @@ extern struct ext2_dir_entry_2 * ext2_find_entry (struct inode *,struct qstr *,
extern int ext2_delete_entry (struct ext2_dir_entry_2 *, struct page *);
extern int ext2_empty_dir (struct inode *);
extern struct ext2_dir_entry_2 * ext2_dotdot (struct inode *, struct page **);
-extern void ext2_set_link(struct inode *, struct ext2_dir_entry_2 *, struct page *, struct inode *);
+extern void ext2_set_link(struct inode *, struct ext2_dir_entry_2 *, struct page *, struct inode *, int);
/* ialloc.c */
extern struct inode * ext2_new_inode (struct inode *, int);
diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index 90ea17998a73..6524ecaebb7a 100644
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -320,7 +320,7 @@ static int ext2_rename (struct inode * old_dir, struct dentry * old_dentry,
if (!new_de)
goto out_dir;
inode_inc_link_count(old_inode);
- ext2_set_link(new_dir, new_de, new_page, old_inode);
+ ext2_set_link(new_dir, new_de, new_page, old_inode, 1);
new_inode->i_ctime = CURRENT_TIME_SEC;
if (dir_de)
drop_nlink(new_inode);
@@ -352,7 +352,8 @@ static int ext2_rename (struct inode * old_dir, struct dentry * old_dentry,
inode_dec_link_count(old_inode);
if (dir_de) {
- ext2_set_link(old_inode, dir_de, dir_page, new_dir);
+ if (old_dir != new_dir)
+ ext2_set_link(old_inode, dir_de, dir_page, new_dir, 0);
inode_dec_link_count(old_dir);
}
return 0;
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index b0248c6d5d4c..05dea8132fc0 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -820,7 +820,7 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
while (count < maxblocks && count <= blocks_to_boundary) {
ext3_fsblk_t blk;
- if (!verify_chain(chain, partial)) {
+ if (!verify_chain(chain, chain + depth - 1)) {
/*
* Indirect block might be removed by
* truncate while we were reading it.
@@ -2374,7 +2374,7 @@ void ext3_truncate(struct inode *inode)
struct page *page;
if (!ext3_can_truncate(inode))
- return;
+ goto out_notrans;
if (inode->i_size == 0 && ext3_should_writeback_data(inode))
ei->i_state |= EXT3_STATE_FLUSH_ON_CLOSE;
@@ -2390,7 +2390,7 @@ void ext3_truncate(struct inode *inode)
page = grab_cache_page(mapping,
inode->i_size >> PAGE_CACHE_SHIFT);
if (!page)
- return;
+ goto out_notrans;
}
handle = start_transaction(inode);
@@ -2401,7 +2401,7 @@ void ext3_truncate(struct inode *inode)
unlock_page(page);
page_cache_release(page);
}
- return; /* AKPM: return what? */
+ goto out_notrans;
}
last_block = (inode->i_size + blocksize-1)
@@ -2525,6 +2525,14 @@ out_stop:
ext3_orphan_del(handle, inode);
ext3_journal_stop(handle);
+ return;
+out_notrans:
+ /*
+ * Delete the inode from orphan list so that it doesn't stay there
+ * forever and trigger assertion on umount.
+ */
+ if (inode->i_nlink)
+ ext3_orphan_del(NULL, inode);
}
static ext3_fsblk_t ext3_get_inode_block(struct super_block *sb,
@@ -3122,12 +3130,6 @@ int ext3_setattr(struct dentry *dentry, struct iattr *attr)
rc = inode_setattr(inode, attr);
- /* If inode_setattr's call to ext3_truncate failed to get a
- * transaction handle at all, we need to clean up the in-core
- * orphan list manually. */
- if (inode->i_nlink)
- ext3_orphan_del(NULL, inode);
-
if (!rc && (ia_valid & ATTR_MODE))
rc = ext3_acl_chmod(inode);
diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c
index 2f0dc5a14633..8ba5441063be 100644
--- a/fs/isofs/dir.c
+++ b/fs/isofs/dir.c
@@ -195,9 +195,8 @@ static int do_isofs_readdir(struct inode *inode, struct file *filp,
* Do not report hidden files if so instructed, or associated
* files unless instructed to do so
*/
- if ((sbi->s_hide == 'y' &&
- (de->flags[-sbi->s_high_sierra] & 1)) ||
- (sbi->s_showassoc =='n' &&
+ if ((sbi->s_hide && (de->flags[-sbi->s_high_sierra] & 1)) ||
+ (!sbi->s_showassoc &&
(de->flags[-sbi->s_high_sierra] & 4))) {
filp->f_pos += de_len;
continue;
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 068b34b5a107..58a7963e168a 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -141,13 +141,17 @@ static const struct dentry_operations isofs_dentry_ops[] = {
};
struct iso9660_options{
- char map;
- char rock;
+ unsigned int rock:1;
+ unsigned int cruft:1;
+ unsigned int hide:1;
+ unsigned int showassoc:1;
+ unsigned int nocompress:1;
+ unsigned int overriderockperm:1;
+ unsigned int uid_set:1;
+ unsigned int gid_set:1;
+ unsigned int utf8:1;
+ unsigned char map;
char joliet;
- char cruft;
- char hide;
- char showassoc;
- char nocompress;
unsigned char check;
unsigned int blocksize;
mode_t fmode;
@@ -155,7 +159,6 @@ struct iso9660_options{
gid_t gid;
uid_t uid;
char *iocharset;
- unsigned char utf8;
/* LVE */
s32 session;
s32 sbsector;
@@ -312,7 +315,7 @@ enum {
Opt_block, Opt_check_r, Opt_check_s, Opt_cruft, Opt_gid, Opt_ignore,
Opt_iocharset, Opt_map_a, Opt_map_n, Opt_map_o, Opt_mode, Opt_nojoliet,
Opt_norock, Opt_sb, Opt_session, Opt_uid, Opt_unhide, Opt_utf8, Opt_err,
- Opt_nocompress, Opt_hide, Opt_showassoc, Opt_dmode,
+ Opt_nocompress, Opt_hide, Opt_showassoc, Opt_dmode, Opt_overriderockperm,
};
static const match_table_t tokens = {
@@ -340,6 +343,7 @@ static const match_table_t tokens = {
{Opt_gid, "gid=%u"},
{Opt_mode, "mode=%u"},
{Opt_dmode, "dmode=%u"},
+ {Opt_overriderockperm, "overriderockperm"},
{Opt_block, "block=%u"},
{Opt_ignore, "conv=binary"},
{Opt_ignore, "conv=b"},
@@ -359,24 +363,22 @@ static int parse_options(char *options, struct iso9660_options *popt)
int option;
popt->map = 'n';
- popt->rock = 'y';
- popt->joliet = 'y';
- popt->cruft = 'n';
- popt->hide = 'n';
- popt->showassoc = 'n';
+ popt->rock = 1;
+ popt->joliet = 1;
+ popt->cruft = 0;
+ popt->hide = 0;
+ popt->showassoc = 0;
popt->check = 'u'; /* unset */
popt->nocompress = 0;
popt->blocksize = 1024;
- popt->fmode = popt->dmode = S_IRUGO | S_IXUGO; /*
- * r-x for all. The disc could
- * be shared with DOS machines so
- * virtually anything could be
- * a valid executable.
- */
+ popt->fmode = popt->dmode = ISOFS_INVALID_MODE;
+ popt->uid_set = 0;
+ popt->gid_set = 0;
popt->gid = 0;
popt->uid = 0;
popt->iocharset = NULL;
popt->utf8 = 0;
+ popt->overriderockperm = 0;
popt->session=-1;
popt->sbsector=-1;
if (!options)
@@ -393,20 +395,20 @@ static int parse_options(char *options, struct iso9660_options *popt)
token = match_token(p, tokens, args);
switch (token) {
case Opt_norock:
- popt->rock = 'n';
+ popt->rock = 0;
break;
case Opt_nojoliet:
- popt->joliet = 'n';
+ popt->joliet = 0;
break;
case Opt_hide:
- popt->hide = 'y';
+ popt->hide = 1;
break;
case Opt_unhide:
case Opt_showassoc:
- popt->showassoc = 'y';
+ popt->showassoc = 1;
break;
case Opt_cruft:
- popt->cruft = 'y';
+ popt->cruft = 1;
break;
case Opt_utf8:
popt->utf8 = 1;
@@ -450,11 +452,13 @@ static int parse_options(char *options, struct iso9660_options *popt)
if (match_int(&args[0], &option))
return 0;
popt->uid = option;
+ popt->uid_set = 1;
break;
case Opt_gid:
if (match_int(&args[0], &option))
return 0;
popt->gid = option;
+ popt->gid_set = 1;
break;
case Opt_mode:
if (match_int(&args[0], &option))
@@ -466,6 +470,9 @@ static int parse_options(char *options, struct iso9660_options *popt)
return 0;
popt->dmode = option;
break;
+ case Opt_overriderockperm:
+ popt->overriderockperm = 1;
+ break;
case Opt_block:
if (match_int(&args[0], &option))
return 0;
@@ -650,7 +657,7 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
goto out_freebh;
sbi->s_high_sierra = 1;
- opt.rock = 'n';
+ opt.rock = 0;
h_pri = (struct hs_primary_descriptor *)vdp;
goto root_found;
}
@@ -673,7 +680,7 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
root_found:
- if (joliet_level && (pri == NULL || opt.rock == 'n')) {
+ if (joliet_level && (pri == NULL || !opt.rock)) {
/* This is the case of Joliet with the norock mount flag.
* A disc with both Joliet and Rock Ridge is handled later
*/
@@ -802,22 +809,31 @@ root_found:
s->s_op = &isofs_sops;
s->s_export_op = &isofs_export_ops;
sbi->s_mapping = opt.map;
- sbi->s_rock = (opt.rock == 'y' ? 2 : 0);
+ sbi->s_rock = (opt.rock ? 2 : 0);
sbi->s_rock_offset = -1; /* initial offset, will guess until SP is found*/
sbi->s_cruft = opt.cruft;
sbi->s_hide = opt.hide;
sbi->s_showassoc = opt.showassoc;
sbi->s_uid = opt.uid;
sbi->s_gid = opt.gid;
+ sbi->s_uid_set = opt.uid_set;
+ sbi->s_gid_set = opt.gid_set;
sbi->s_utf8 = opt.utf8;
sbi->s_nocompress = opt.nocompress;
+ sbi->s_overriderockperm = opt.overriderockperm;
/*
* It would be incredibly stupid to allow people to mark every file
* on the disk as suid, so we merely allow them to set the default
* permissions.
*/
- sbi->s_fmode = opt.fmode & 0777;
- sbi->s_dmode = opt.dmode & 0777;
+ if (opt.fmode != ISOFS_INVALID_MODE)
+ sbi->s_fmode = opt.fmode & 0777;
+ else
+ sbi->s_fmode = ISOFS_INVALID_MODE;
+ if (opt.dmode != ISOFS_INVALID_MODE)
+ sbi->s_dmode = opt.dmode & 0777;
+ else
+ sbi->s_dmode = ISOFS_INVALID_MODE;
/*
* Read the root inode, which _may_ result in changing
@@ -1095,18 +1111,6 @@ static const struct address_space_operations isofs_aops = {
.bmap = _isofs_bmap
};
-static inline void test_and_set_uid(uid_t *p, uid_t value)
-{
- if (value)
- *p = value;
-}
-
-static inline void test_and_set_gid(gid_t *p, gid_t value)
-{
- if (value)
- *p = value;
-}
-
static int isofs_read_level3_size(struct inode *inode)
{
unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
@@ -1261,7 +1265,10 @@ static int isofs_read_inode(struct inode *inode)
ei->i_file_format = isofs_file_normal;
if (de->flags[-high_sierra] & 2) {
- inode->i_mode = sbi->s_dmode | S_IFDIR;
+ if (sbi->s_dmode != ISOFS_INVALID_MODE)
+ inode->i_mode = S_IFDIR | sbi->s_dmode;
+ else
+ inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
inode->i_nlink = 1; /*
* Set to 1. We know there are 2, but
* the find utility tries to optimize
@@ -1270,8 +1277,16 @@ static int isofs_read_inode(struct inode *inode)
* do it the hard way.
*/
} else {
- /* Everybody gets to read the file. */
- inode->i_mode = sbi->s_fmode | S_IFREG;
+ if (sbi->s_fmode != ISOFS_INVALID_MODE) {
+ inode->i_mode = S_IFREG | sbi->s_fmode;
+ } else {
+ /*
+ * Set default permissions: r-x for all. The disc
+ * could be shared with DOS machines so virtually
+ * anything could be a valid executable.
+ */
+ inode->i_mode = S_IFREG | S_IRUGO | S_IXUGO;
+ }
inode->i_nlink = 1;
}
inode->i_uid = sbi->s_uid;
@@ -1300,7 +1315,7 @@ static int isofs_read_inode(struct inode *inode)
* this CDROM was mounted with the cruft option.
*/
- if (sbi->s_cruft == 'y')
+ if (sbi->s_cruft)
inode->i_size &= 0x00ffffff;
if (de->interleave[0]) {
@@ -1346,9 +1361,18 @@ static int isofs_read_inode(struct inode *inode)
if (!high_sierra) {
parse_rock_ridge_inode(de, inode);
/* if we want uid/gid set, override the rock ridge setting */
- test_and_set_uid(&inode->i_uid, sbi->s_uid);
- test_and_set_gid(&inode->i_gid, sbi->s_gid);
+ if (sbi->s_uid_set)
+ inode->i_uid = sbi->s_uid;
+ if (sbi->s_gid_set)
+ inode->i_gid = sbi->s_gid;
}
+ /* Now set final access rights if overriding rock ridge setting */
+ if (S_ISDIR(inode->i_mode) && sbi->s_overriderockperm &&
+ sbi->s_dmode != ISOFS_INVALID_MODE)
+ inode->i_mode = S_IFDIR | sbi->s_dmode;
+ if (S_ISREG(inode->i_mode) && sbi->s_overriderockperm &&
+ sbi->s_fmode != ISOFS_INVALID_MODE)
+ inode->i_mode = S_IFREG | sbi->s_fmode;
/* Install the inode operations vector */
if (S_ISREG(inode->i_mode)) {
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index ccbf72faf27a..7d33de84f52a 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -35,21 +35,20 @@ struct isofs_sb_info {
unsigned long s_log_zone_size;
unsigned long s_max_size;
- unsigned char s_high_sierra; /* A simple flag */
- unsigned char s_mapping;
int s_rock_offset; /* offset of SUSP fields within SU area */
- unsigned char s_rock;
unsigned char s_joliet_level;
- unsigned char s_utf8;
- unsigned char s_cruft; /* Broken disks with high
- byte of length containing
- junk */
- unsigned char s_unhide;
- unsigned char s_nosuid;
- unsigned char s_nodev;
- unsigned char s_nocompress;
- unsigned char s_hide;
- unsigned char s_showassoc;
+ unsigned char s_mapping;
+ unsigned int s_high_sierra:1;
+ unsigned int s_rock:2;
+ unsigned int s_utf8:1;
+ unsigned int s_cruft:1; /* Broken disks with high byte of length
+ * containing junk */
+ unsigned int s_nocompress:1;
+ unsigned int s_hide:1;
+ unsigned int s_showassoc:1;
+ unsigned int s_overriderockperm:1;
+ unsigned int s_uid_set:1;
+ unsigned int s_gid_set:1;
mode_t s_fmode;
mode_t s_dmode;
@@ -58,6 +57,8 @@ struct isofs_sb_info {
struct nls_table *s_nls_iocharset; /* Native language support table */
};
+#define ISOFS_INVALID_MODE ((mode_t) -1)
+
static inline struct isofs_sb_info *ISOFS_SB(struct super_block *sb)
{
return sb->s_fs_info;
diff --git a/fs/isofs/namei.c b/fs/isofs/namei.c
index 8299889a835e..eaa831311c9c 100644
--- a/fs/isofs/namei.c
+++ b/fs/isofs/namei.c
@@ -142,9 +142,9 @@ isofs_find_entry(struct inode *dir, struct dentry *dentry,
*/
match = 0;
if (dlen > 0 &&
- (sbi->s_hide =='n' ||
+ (!sbi->s_hide ||
(!(de->flags[-sbi->s_high_sierra] & 1))) &&
- (sbi->s_showassoc =='y' ||
+ (sbi->s_showassoc ||
(!(de->flags[-sbi->s_high_sierra] & 4)))) {
match = (isofs_cmp(dentry, dpnt, dlen) == 0);
}
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index ed886e6db399..73242ba7c7b1 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -1686,35 +1686,6 @@ out:
return;
}
-/*
- * journal_try_to_free_buffers() could race with journal_commit_transaction()
- * The latter might still hold the a count on buffers when inspecting
- * them on t_syncdata_list or t_locked_list.
- *
- * journal_try_to_free_buffers() will call this function to
- * wait for the current transaction to finish syncing data buffers, before
- * tryinf to free that buffer.
- *
- * Called with journal->j_state_lock held.
- */
-static void journal_wait_for_transaction_sync_data(journal_t *journal)
-{
- transaction_t *transaction = NULL;
- tid_t tid;
-
- spin_lock(&journal->j_state_lock);
- transaction = journal->j_committing_transaction;
-
- if (!transaction) {
- spin_unlock(&journal->j_state_lock);
- return;
- }
-
- tid = transaction->t_tid;
- spin_unlock(&journal->j_state_lock);
- log_wait_commit(journal, tid);
-}
-
/**
* int journal_try_to_free_buffers() - try to free page buffers.
* @journal: journal for operation
@@ -1786,25 +1757,6 @@ int journal_try_to_free_buffers(journal_t *journal,
ret = try_to_free_buffers(page);
- /*
- * There are a number of places where journal_try_to_free_buffers()
- * could race with journal_commit_transaction(), the later still
- * holds the reference to the buffers to free while processing them.
- * try_to_free_buffers() failed to free those buffers. Some of the
- * caller of releasepage() request page buffers to be dropped, otherwise
- * treat the fail-to-free as errors (such as generic_file_direct_IO())
- *
- * So, if the caller of try_to_release_page() wants the synchronous
- * behaviour(i.e make sure buffers are dropped upon return),
- * let's wait for the current transaction to finish flush of
- * dirty data buffers, then try to free those buffers again,
- * with the journal locked.
- */
- if (ret == 0 && (gfp_mask & __GFP_WAIT) && (gfp_mask & __GFP_FS)) {
- journal_wait_for_transaction_sync_data(journal);
- ret = try_to_free_buffers(page);
- }
-
busy:
return ret;
}
diff --git a/fs/proc/Makefile b/fs/proc/Makefile
index 63d965193b22..11a7b5c68153 100644
--- a/fs/proc/Makefile
+++ b/fs/proc/Makefile
@@ -18,6 +18,7 @@ proc-y += meminfo.o
proc-y += stat.o
proc-y += uptime.o
proc-y += version.o
+proc-y += softirqs.o
proc-$(CONFIG_PROC_SYSCTL) += proc_sysctl.o
proc-$(CONFIG_NET) += proc_net.o
proc-$(CONFIG_PROC_KCORE) += kcore.o
diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
index fc6c3025befd..7ba79a54948c 100644
--- a/fs/proc/proc_devtree.c
+++ b/fs/proc/proc_devtree.c
@@ -195,20 +195,20 @@ void proc_device_tree_add_node(struct device_node *np,
p = fixup_name(np, de, p);
ent = proc_mkdir(p, de);
- if (ent == 0)
+ if (ent == NULL)
break;
proc_device_tree_add_node(child, ent);
}
of_node_put(child);
- for (pp = np->properties; pp != 0; pp = pp->next) {
+ for (pp = np->properties; pp != NULL; pp = pp->next) {
p = pp->name;
if (duplicate_name(de, p))
p = fixup_name(np, de, p);
ent = __proc_device_tree_add_prop(de, pp, p);
- if (ent == 0)
+ if (ent == NULL)
break;
}
}
@@ -221,10 +221,10 @@ void __init proc_device_tree_init(void)
struct device_node *root;
proc_device_tree = proc_mkdir("device-tree", NULL);
- if (proc_device_tree == 0)
+ if (proc_device_tree == NULL)
return;
root = of_find_node_by_path("/");
- if (root == 0) {
+ if (root == NULL) {
printk(KERN_ERR "/proc/device-tree: can't find root\n");
return;
}
diff --git a/fs/proc/softirqs.c b/fs/proc/softirqs.c
new file mode 100644
index 000000000000..1807c2419f17
--- /dev/null
+++ b/fs/proc/softirqs.c
@@ -0,0 +1,44 @@
+#include <linux/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+/*
+ * /proc/softirqs ... display the number of softirqs
+ */
+static int show_softirqs(struct seq_file *p, void *v)
+{
+ int i, j;
+
+ seq_printf(p, " ");
+ for_each_possible_cpu(i)
+ seq_printf(p, "CPU%-8d", i);
+ seq_printf(p, "\n");
+
+ for (i = 0; i < NR_SOFTIRQS; i++) {
+ seq_printf(p, "%8s:", softirq_to_name[i]);
+ for_each_possible_cpu(j)
+ seq_printf(p, " %10u", kstat_softirqs_cpu(i, j));
+ seq_printf(p, "\n");
+ }
+ return 0;
+}
+
+static int softirqs_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, show_softirqs, NULL);
+}
+
+static const struct file_operations proc_softirqs_operations = {
+ .open = softirqs_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int __init proc_softirqs_init(void)
+{
+ proc_create("softirqs", 0, NULL, &proc_softirqs_operations);
+ return 0;
+}
+module_init(proc_softirqs_init);
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index 81e4eb60972e..7cc726c6d70a 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -29,6 +29,8 @@ static int show_stat(struct seq_file *p, void *v)
cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
cputime64_t guest;
u64 sum = 0;
+ u64 sum_softirq = 0;
+ unsigned int per_softirq_sums[NR_SOFTIRQS] = {0};
struct timespec boottime;
unsigned int per_irq_sum;
@@ -53,6 +55,13 @@ static int show_stat(struct seq_file *p, void *v)
sum += kstat_irqs_cpu(j, i);
}
sum += arch_irq_stat_cpu(i);
+
+ for (j = 0; j < NR_SOFTIRQS; j++) {
+ unsigned int softirq_stat = kstat_softirqs_cpu(j, i);
+
+ per_softirq_sums[j] += softirq_stat;
+ sum_softirq += softirq_stat;
+ }
}
sum += arch_irq_stat();
@@ -115,6 +124,12 @@ static int show_stat(struct seq_file *p, void *v)
nr_running(),
nr_iowait());
+ seq_printf(p, "softirq %llu", (unsigned long long)sum_softirq);
+
+ for (i = 0; i < NR_SOFTIRQS; i++)
+ seq_printf(p, " %u", per_softirq_sums[i]);
+ seq_printf(p, "\n");
+
return 0;
}
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 5edcc3f92ba7..0872afa58d39 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -166,12 +166,7 @@ static const struct file_operations proc_vmcore_operations = {
static struct vmcore* __init get_new_element(void)
{
- struct vmcore *p;
-
- p = kmalloc(sizeof(*p), GFP_KERNEL);
- if (p)
- memset(p, 0, sizeof(*p));
- return p;
+ return kzalloc(sizeof(struct vmcore), GFP_KERNEL);
}
static u64 __init get_vmcore_size_elf64(char *elfptr)
diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
index 4beb964a2a3e..128d3f7c8aa5 100644
--- a/fs/reiserfs/do_balan.c
+++ b/fs/reiserfs/do_balan.c
@@ -1270,9 +1270,8 @@ static int balance_leaf(struct tree_balance *tb, struct item_head *ih, /* item h
RFALSE(ih, "PAP-12210: ih must be 0");
- if (is_direntry_le_ih
- (aux_ih =
- B_N_PITEM_HEAD(tbS0, item_pos))) {
+ aux_ih = B_N_PITEM_HEAD(tbS0, item_pos);
+ if (is_direntry_le_ih(aux_ih)) {
/* we append to directory item */
int entry_count;
diff --git a/fs/reiserfs/lbalance.c b/fs/reiserfs/lbalance.c
index 381750a155f6..03d85cbf90bf 100644
--- a/fs/reiserfs/lbalance.c
+++ b/fs/reiserfs/lbalance.c
@@ -390,7 +390,8 @@ static void leaf_item_bottle(struct buffer_info *dest_bi,
if (last_first == FIRST_TO_LAST) {
/* if ( if item in position item_num in buffer SOURCE is directory item ) */
- if (is_direntry_le_ih(ih = B_N_PITEM_HEAD(src, item_num)))
+ ih = B_N_PITEM_HEAD(src, item_num);
+ if (is_direntry_le_ih(ih))
leaf_copy_dir_entries(dest_bi, src, FIRST_TO_LAST,
item_num, 0, cpy_bytes);
else {
@@ -418,7 +419,8 @@ static void leaf_item_bottle(struct buffer_info *dest_bi,
}
} else {
/* if ( if item in position item_num in buffer SOURCE is directory item ) */
- if (is_direntry_le_ih(ih = B_N_PITEM_HEAD(src, item_num)))
+ ih = B_N_PITEM_HEAD(src, item_num);
+ if (is_direntry_le_ih(ih))
leaf_copy_dir_entries(dest_bi, src, LAST_TO_FIRST,
item_num,
I_ENTRY_COUNT(ih) - cpy_bytes,
@@ -774,8 +776,8 @@ void leaf_delete_items(struct buffer_info *cur_bi, int last_first,
leaf_delete_items_entirely(cur_bi, first + 1,
del_num - 1);
- if (is_direntry_le_ih
- (ih = B_N_PITEM_HEAD(bh, B_NR_ITEMS(bh) - 1)))
+ ih = B_N_PITEM_HEAD(bh, B_NR_ITEMS(bh) - 1);
+ if (is_direntry_le_ih(ih))
/* the last item is directory */
/* len = numbers of directory entries in this item */
len = ih_entry_count(ih);
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 7f40f30c55c5..6c959275f2d0 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -640,6 +640,26 @@ int seq_puts(struct seq_file *m, const char *s)
}
EXPORT_SYMBOL(seq_puts);
+/**
+ * seq_write - write arbitrary data to buffer
+ * @seq: seq_file identifying the buffer to which data should be written
+ * @data: data address
+ * @len: number of bytes
+ *
+ * Return 0 on success, non-zero otherwise.
+ */
+int seq_write(struct seq_file *seq, const void *data, size_t len)
+{
+ if (seq->count + len < seq->size) {
+ memcpy(seq->buf + seq->count, data, len);
+ seq->count += len;
+ return 0;
+ }
+ seq->count = seq->size;
+ return -1;
+}
+EXPORT_SYMBOL(seq_write);
+
struct list_head *seq_list_start(struct list_head *head, loff_t pos)
{
struct list_head *lh;
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 3d2512c21f05..7cf33379fd46 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -56,9 +56,7 @@ static int ufs_block_to_path(struct inode *inode, sector_t i_block, sector_t off
UFSD("ptrs=uspi->s_apb = %d,double_blocks=%ld \n",ptrs,double_blocks);
- if (i_block < 0) {
- ufs_warning(inode->i_sb, "ufs_block_to_path", "block < 0");
- } else if (i_block < direct_blocks) {
+ if (i_block < direct_blocks) {
offsets[n++] = i_block;
} else if ((i_block -= direct_blocks) < indirect_blocks) {
offsets[n++] = UFS_IND_BLOCK;
@@ -440,8 +438,6 @@ int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head
lock_kernel();
UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment);
- if (fragment < 0)
- goto abort_negative;
if (fragment >
((UFS_NDADDR + uspi->s_apb + uspi->s_2apb + uspi->s_3apb)
<< uspi->s_fpbshift))
@@ -504,10 +500,6 @@ abort:
unlock_kernel();
return err;
-abort_negative:
- ufs_warning(sb, "ufs_get_block", "block < 0");
- goto abort;
-
abort_too_big:
ufs_warning(sb, "ufs_get_block", "block > big");
goto abort;
generated by cgit v1.2.3 (git 2.0.4) at 2025-05-18 17:02:06 +0000