diff options
Diffstat (limited to 'fs/xfs/xfs_file.c')
| -rw-r--r-- | fs/xfs/xfs_file.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index e78feb400e22..2f7b6bd39f61 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -287,7 +287,7 @@ xfs_file_read_iter( xfs_fsize_t n; loff_t pos = iocb->ki_pos; - XFS_STATS_INC(xs_read_calls); + XFS_STATS_INC(mp, xs_read_calls); if (unlikely(iocb->ki_flags & IOCB_DIRECT)) ioflags |= XFS_IO_ISDIRECT; @@ -365,7 +365,7 @@ xfs_file_read_iter( ret = generic_file_read_iter(iocb, to); if (ret > 0) - XFS_STATS_ADD(xs_read_bytes, ret); + XFS_STATS_ADD(mp, xs_read_bytes, ret); xfs_rw_iunlock(ip, XFS_IOLOCK_SHARED); return ret; @@ -383,7 +383,7 @@ xfs_file_splice_read( int ioflags = 0; ssize_t ret; - XFS_STATS_INC(xs_read_calls); + XFS_STATS_INC(ip->i_mount, xs_read_calls); if (infilp->f_mode & FMODE_NOCMTIME) ioflags |= XFS_IO_INVIS; @@ -401,7 +401,7 @@ xfs_file_splice_read( else ret = generic_file_splice_read(infilp, ppos, pipe, count, flags); if (ret > 0) - XFS_STATS_ADD(xs_read_bytes, ret); + XFS_STATS_ADD(ip->i_mount, xs_read_bytes, ret); xfs_rw_iunlock(ip, XFS_IOLOCK_SHARED); return ret; @@ -482,6 +482,8 @@ xfs_zero_eof( ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); ASSERT(offset > isize); + trace_xfs_zero_eof(ip, isize, offset - isize); + /* * First handle zeroing the block on which isize resides. * @@ -574,6 +576,7 @@ xfs_file_aio_write_checks( struct xfs_inode *ip = XFS_I(inode); ssize_t error = 0; size_t count = iov_iter_count(from); + bool drained_dio = false; restart: error = generic_write_checks(iocb, from); @@ -611,12 +614,13 @@ restart: bool zero = false; spin_unlock(&ip->i_flags_lock); - if (*iolock == XFS_IOLOCK_SHARED) { - xfs_rw_iunlock(ip, *iolock); - *iolock = XFS_IOLOCK_EXCL; - xfs_rw_ilock(ip, *iolock); - iov_iter_reexpand(from, count); - + if (!drained_dio) { + if (*iolock == XFS_IOLOCK_SHARED) { + xfs_rw_iunlock(ip, *iolock); + *iolock = XFS_IOLOCK_EXCL; + xfs_rw_ilock(ip, *iolock); + iov_iter_reexpand(from, count); + } /* * We now have an IO submission barrier in place, but * AIO can do EOF updates during IO completion and hence @@ -626,6 +630,7 @@ restart: * no-op. */ inode_dio_wait(inode); + drained_dio = true; goto restart; } error = xfs_zero_eof(ip, iocb->ki_pos, i_size_read(inode), &zero); @@ -867,7 +872,7 @@ xfs_file_write_iter( ssize_t ret; size_t ocount = iov_iter_count(from); - XFS_STATS_INC(xs_write_calls); + XFS_STATS_INC(ip->i_mount, xs_write_calls); if (ocount == 0) return 0; @@ -883,7 +888,7 @@ xfs_file_write_iter( if (ret > 0) { ssize_t err; - XFS_STATS_ADD(xs_write_bytes, ret); + XFS_STATS_ADD(ip->i_mount, xs_write_bytes, ret); /* Handle various SYNC-type writes */ err = generic_write_sync(file, iocb->ki_pos - ret, ret); |