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| author | Christoph Hellwig <hch@infradead.org> | 2012-02-29 09:53:49 +0000 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2012-03-05 11:19:26 -0600 |
| commit | 6923e686f19cb7017fc9777a10e06c2e2b2a2936 (patch) | |
| tree | 14398306804485fd7c0f04538d76f042f5cec6d9 /fs | |
| parent | aa6bf01d391935a8929333bc2e243084ea0c58db (diff) | |
| download | op-kernel-dev-6923e686f19cb7017fc9777a10e06c2e2b2a2936.zip op-kernel-dev-6923e686f19cb7017fc9777a10e06c2e2b2a2936.tar.gz | |
xfs: do not require an ioend for new EOF calculation
Replace xfs_ioend_new_eof with a new inline xfs_new_eof helper that
doesn't require and ioend, and is available also outside of xfs_aops.c.
Also make the code a bit more clear by using a normal if statement
instead of a slightly misleading MIN().
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/xfs_aops.c | 24 | ||||
| -rw-r--r-- | fs/xfs/xfs_inode.h | 14 |
2 files changed, 18 insertions, 20 deletions
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 540a0174..745492b 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -99,23 +99,6 @@ xfs_destroy_ioend( } /* - * If the end of the current ioend is beyond the current EOF, - * return the new EOF value, otherwise zero. - */ -STATIC xfs_fsize_t -xfs_ioend_new_eof( - xfs_ioend_t *ioend) -{ - xfs_inode_t *ip = XFS_I(ioend->io_inode); - xfs_fsize_t isize; - xfs_fsize_t bsize; - - bsize = ioend->io_offset + ioend->io_size; - isize = MIN(i_size_read(VFS_I(ip)), bsize); - return isize > ip->i_d.di_size ? isize : 0; -} - -/* * Fast and loose check if this write could update the on-disk inode size. */ static inline bool xfs_ioend_is_append(struct xfs_ioend *ioend) @@ -135,7 +118,7 @@ xfs_setfilesize( xfs_fsize_t isize; xfs_ilock(ip, XFS_ILOCK_EXCL); - isize = xfs_ioend_new_eof(ioend); + isize = xfs_new_eof(ip, ioend->io_offset + ioend->io_size); if (isize) { trace_xfs_setfilesize(ip, ioend->io_offset, ioend->io_size); ip->i_d.di_size = isize; @@ -357,6 +340,7 @@ xfs_submit_ioend_bio( xfs_ioend_t *ioend, struct bio *bio) { + struct xfs_inode *ip = XFS_I(ioend->io_inode); atomic_inc(&ioend->io_remaining); bio->bi_private = ioend; bio->bi_end_io = xfs_end_bio; @@ -365,8 +349,8 @@ xfs_submit_ioend_bio( * If the I/O is beyond EOF we mark the inode dirty immediately * but don't update the inode size until I/O completion. */ - if (xfs_ioend_new_eof(ioend)) - xfs_mark_inode_dirty(XFS_I(ioend->io_inode)); + if (xfs_new_eof(ip, ioend->io_offset + ioend->io_size)) + xfs_mark_inode_dirty(ip); submit_bio(wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC : WRITE, bio); } diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index eda4937..7f90469 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -275,6 +275,20 @@ static inline xfs_fsize_t XFS_ISIZE(struct xfs_inode *ip) } /* + * If this I/O goes past the on-disk inode size update it unless it would + * be past the current in-core inode size. + */ +static inline xfs_fsize_t +xfs_new_eof(struct xfs_inode *ip, xfs_fsize_t new_size) +{ + xfs_fsize_t i_size = i_size_read(VFS_I(ip)); + + if (new_size > i_size) + new_size = i_size; + return new_size > ip->i_d.di_size ? new_size : 0; +} + +/* * i_flags helper functions */ static inline void |
