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().
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
fs/xfs/xfs_aops.c | 24 ++++--------------------
fs/xfs/xfs_inode.h | 14 ++++++++++++++
2 files changed, 18 insertions(+), 20 deletions(-)
Index: xfs/fs/xfs/xfs_aops.c
===================================================================
--- xfs.orig/fs/xfs/xfs_aops.c 2011-10-27 22:39:57.490177027 +0200
+++ xfs/fs/xfs/xfs_aops.c 2011-10-27 22:39:58.142174495 +0200
@@ -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);
}
Index: xfs/fs/xfs/xfs_inode.h
===================================================================
--- xfs.orig/fs/xfs/xfs_inode.h 2011-10-27 22:39:56.080672114 +0200
+++ xfs/fs/xfs/xfs_inode.h 2011-10-27 22:39:58.142174495 +0200
@@ -275,6 +275,20 @@ static inline xfs_fsize_t XFS_ISIZE(stru
}
/*
+ * 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
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