From 56ff5efad96182f4d3cb3dc6b07396762c658f16 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 9 Dec 2008 09:34:39 -0500 Subject: zero i_uid/i_gid on inode allocation ... and don't bother in callers. Don't bother with zeroing i_blocks, while we are at it - it's already been zeroed. i_mode is not worth the effort; it has no common default value. Signed-off-by: Al Viro --- drivers/infiniband/hw/ipath/ipath_fs.c | 3 --- drivers/isdn/capi/capifs.c | 2 -- drivers/misc/ibmasm/ibmasmfs.c | 2 -- drivers/oprofile/oprofilefs.c | 3 --- drivers/usb/core/inode.c | 1 - drivers/usb/gadget/inode.c | 1 - 6 files changed, 12 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c index 53912c327bfe..8dc2bb781605 100644 --- a/drivers/infiniband/hw/ipath/ipath_fs.c +++ b/drivers/infiniband/hw/ipath/ipath_fs.c @@ -57,9 +57,6 @@ static int ipathfs_mknod(struct inode *dir, struct dentry *dentry, } inode->i_mode = mode; - inode->i_uid = 0; - inode->i_gid = 0; - inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; inode->i_private = data; if ((mode & S_IFMT) == S_IFDIR) { diff --git a/drivers/isdn/capi/capifs.c b/drivers/isdn/capi/capifs.c index 0aa66ec4cbdd..b129409925af 100644 --- a/drivers/isdn/capi/capifs.c +++ b/drivers/isdn/capi/capifs.c @@ -111,8 +111,6 @@ capifs_fill_super(struct super_block *s, void *data, int silent) goto fail; inode->i_ino = 1; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; - inode->i_blocks = 0; - inode->i_uid = inode->i_gid = 0; inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR; inode->i_op = &simple_dir_inode_operations; inode->i_fop = &simple_dir_operations; diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c index 22a7e8ba211d..de966a6fb7e6 100644 --- a/drivers/misc/ibmasm/ibmasmfs.c +++ b/drivers/misc/ibmasm/ibmasmfs.c @@ -146,8 +146,6 @@ static struct inode *ibmasmfs_make_inode(struct super_block *sb, int mode) if (ret) { ret->i_mode = mode; - ret->i_uid = ret->i_gid = 0; - ret->i_blocks = 0; ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME; } return ret; diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c index ddc4c59f02dc..b7e4cee24269 100644 --- a/drivers/oprofile/oprofilefs.c +++ b/drivers/oprofile/oprofilefs.c @@ -29,9 +29,6 @@ static struct inode *oprofilefs_get_inode(struct super_block *sb, int mode) if (inode) { inode->i_mode = mode; - inode->i_uid = 0; - inode->i_gid = 0; - inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; } return inode; diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c index 185be760833e..2a129cb7bb56 100644 --- a/drivers/usb/core/inode.c +++ b/drivers/usb/core/inode.c @@ -279,7 +279,6 @@ static struct inode *usbfs_get_inode (struct super_block *sb, int mode, dev_t de inode->i_mode = mode; inode->i_uid = current_fsuid(); inode->i_gid = current_fsgid(); - inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; switch (mode & S_IFMT) { default: diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index eeb26c0f88e5..317b48fdbf01 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -2001,7 +2001,6 @@ gadgetfs_make_inode (struct super_block *sb, inode->i_mode = mode; inode->i_uid = default_uid; inode->i_gid = default_gid; - inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; inode->i_private = data; -- cgit v1.2.3 From 4c728ef583b3d82266584da5cb068294c09df31e Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 22 Dec 2008 21:11:15 +0100 Subject: add a vfs_fsync helper Fsync currently has a fdatawrite/fdatawait pair around the method call, and a mutex_lock/unlock of the inode mutex. All callers of fsync have to duplicate this, but we have a few and most of them don't quite get it right. This patch adds a new vfs_fsync that takes care of this. It's a little more complicated as usual as ->fsync might get a NULL file pointer and just a dentry from nfsd, but otherwise gets afile and we want to take the mapping and file operations from it when it is there. Notes on the fsync callers: - ecryptfs wasn't calling filemap_fdatawrite / filemap_fdatawait on the lower file - coda wasn't calling filemap_fdatawrite / filemap_fdatawait on the host file, and returning 0 when ->fsync was missing - shm wasn't calling either filemap_fdatawrite / filemap_fdatawait nor taking i_mutex. Now given that shared memory doesn't have disk backing not doing anything in fsync seems fine and I left it out of the vfs_fsync conversion for now, but in that case we might just not pass it through to the lower file at all but just call the no-op simple_sync_file directly. [and now actually export vfs_fsync] Signed-off-by: Christoph Hellwig Signed-off-by: Al Viro --- drivers/usb/gadget/file_storage.c | 18 +----------------- 1 file changed, 1 insertion(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index c4e62a6297d7..2e71368f45b4 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -1863,26 +1863,10 @@ static int do_write(struct fsg_dev *fsg) static int fsync_sub(struct lun *curlun) { struct file *filp = curlun->filp; - struct inode *inode; - int rc, err; if (curlun->ro || !filp) return 0; - if (!filp->f_op->fsync) - return -EINVAL; - - inode = filp->f_path.dentry->d_inode; - mutex_lock(&inode->i_mutex); - rc = filemap_fdatawrite(inode->i_mapping); - err = filp->f_op->fsync(filp, filp->f_path.dentry, 1); - if (!rc) - rc = err; - err = filemap_fdatawait(inode->i_mapping); - if (!rc) - rc = err; - mutex_unlock(&inode->i_mutex); - VLDBG(curlun, "fdatasync -> %d\n", rc); - return rc; + return vfs_fsync(filp, filp->f_path.dentry, 1); } static void fsync_all(struct fsg_dev *fsg) -- cgit v1.2.3