diff options
| author | Christoph Hellwig <hch@infradead.org> | 2008-11-28 14:23:32 +1100 |
|---|---|---|
| committer | Niv Sardi <xaiki@sgi.com> | 2008-12-01 11:07:08 +1100 |
| commit | f999a5bf3fa6b3d11334c3ba1e9dcfed5ff9f8a6 (patch) | |
| tree | 6ee512a3e292b13dca507cc1bc1528cded8b5abe /fs/xfs/linux-2.6/xfs_file.c | |
| parent | bac8dca9f9b1dfcf9c4ecb4f9ca17185b828cc20 (diff) | |
[XFS] wire up ->open for directories
Currently there's no ->open method set for directories on XFS. That
means we don't perform any check for opening too large directories
without O_LARGEFILE, we don't check for shut down filesystems, and we
don't actually do the readahead for the first block in the directory.
Instead of just setting the directories open routine to xfs_file_open
we merge the shutdown check directly into xfs_file_open and create
a new xfs_dir_open that first calls xfs_file_open and then performs
the readahead for block 0.
(First sent on September 29th)
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_file.c')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_file.c | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c index 3fee790f138b..72fc8d8c8bc1 100644 --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c @@ -38,6 +38,7 @@ #include "xfs_rw.h" #include "xfs_ioctl32.h" #include "xfs_vnodeops.h" +#include "xfs_da_btree.h" #include <linux/dcache.h> #include <linux/smp_lock.h> @@ -169,11 +170,37 @@ xfs_file_splice_write_invis( STATIC int xfs_file_open( struct inode *inode, - struct file *filp) + struct file *file) { - if (!(filp->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS) + if (!(file->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS) return -EFBIG; - return -xfs_open(XFS_I(inode)); + if (XFS_FORCED_SHUTDOWN(XFS_M(inode->i_sb))) + return -EIO; + return 0; +} + +STATIC int +xfs_dir_open( + struct inode *inode, + struct file *file) +{ + struct xfs_inode *ip = XFS_I(inode); + int mode; + int error; + + error = xfs_file_open(inode, file); + if (error) + return error; + + /* + * If there are any blocks, read-ahead block 0 as we're almost + * certain to have the next operation be a read there. + */ + mode = xfs_ilock_map_shared(ip); + if (ip->i_d.di_nextents > 0) + xfs_da_reada_buf(NULL, ip, 0, XFS_DATA_FORK); + xfs_iunlock(ip, mode); + return 0; } STATIC int @@ -345,6 +372,7 @@ const struct file_operations xfs_invis_file_operations = { const struct file_operations xfs_dir_file_operations = { + .open = xfs_dir_open, .read = generic_read_dir, .readdir = xfs_file_readdir, .llseek = generic_file_llseek, |