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Diffstat (limited to 'fs/xfs/xfs_file.c')
-rw-r--r--fs/xfs/xfs_file.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index ce615d12fb44..a2e1cb8a568b 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -397,7 +397,8 @@ STATIC int /* error (positive) */
397xfs_zero_last_block( 397xfs_zero_last_block(
398 struct xfs_inode *ip, 398 struct xfs_inode *ip,
399 xfs_fsize_t offset, 399 xfs_fsize_t offset,
400 xfs_fsize_t isize) 400 xfs_fsize_t isize,
401 bool *did_zeroing)
401{ 402{
402 struct xfs_mount *mp = ip->i_mount; 403 struct xfs_mount *mp = ip->i_mount;
403 xfs_fileoff_t last_fsb = XFS_B_TO_FSBT(mp, isize); 404 xfs_fileoff_t last_fsb = XFS_B_TO_FSBT(mp, isize);
@@ -425,6 +426,7 @@ xfs_zero_last_block(
425 zero_len = mp->m_sb.sb_blocksize - zero_offset; 426 zero_len = mp->m_sb.sb_blocksize - zero_offset;
426 if (isize + zero_len > offset) 427 if (isize + zero_len > offset)
427 zero_len = offset - isize; 428 zero_len = offset - isize;
429 *did_zeroing = true;
428 return xfs_iozero(ip, isize, zero_len); 430 return xfs_iozero(ip, isize, zero_len);
429} 431}
430 432
@@ -443,7 +445,8 @@ int /* error (positive) */
443xfs_zero_eof( 445xfs_zero_eof(
444 struct xfs_inode *ip, 446 struct xfs_inode *ip,
445 xfs_off_t offset, /* starting I/O offset */ 447 xfs_off_t offset, /* starting I/O offset */
446 xfs_fsize_t isize) /* current inode size */ 448 xfs_fsize_t isize, /* current inode size */
449 bool *did_zeroing)
447{ 450{
448 struct xfs_mount *mp = ip->i_mount; 451 struct xfs_mount *mp = ip->i_mount;
449 xfs_fileoff_t start_zero_fsb; 452 xfs_fileoff_t start_zero_fsb;
@@ -465,7 +468,7 @@ xfs_zero_eof(
465 * We only zero a part of that block so it is handled specially. 468 * We only zero a part of that block so it is handled specially.
466 */ 469 */
467 if (XFS_B_FSB_OFFSET(mp, isize) != 0) { 470 if (XFS_B_FSB_OFFSET(mp, isize) != 0) {
468 error = xfs_zero_last_block(ip, offset, isize); 471 error = xfs_zero_last_block(ip, offset, isize, did_zeroing);
469 if (error) 472 if (error)
470 return error; 473 return error;
471 } 474 }
@@ -525,6 +528,7 @@ xfs_zero_eof(
525 if (error) 528 if (error)
526 return error; 529 return error;
527 530
531 *did_zeroing = true;
528 start_zero_fsb = imap.br_startoff + imap.br_blockcount; 532 start_zero_fsb = imap.br_startoff + imap.br_blockcount;
529 ASSERT(start_zero_fsb <= (end_zero_fsb + 1)); 533 ASSERT(start_zero_fsb <= (end_zero_fsb + 1));
530 } 534 }
@@ -567,13 +571,15 @@ restart:
567 * having to redo all checks before. 571 * having to redo all checks before.
568 */ 572 */
569 if (*pos > i_size_read(inode)) { 573 if (*pos > i_size_read(inode)) {
574 bool zero = false;
575
570 if (*iolock == XFS_IOLOCK_SHARED) { 576 if (*iolock == XFS_IOLOCK_SHARED) {
571 xfs_rw_iunlock(ip, *iolock); 577 xfs_rw_iunlock(ip, *iolock);
572 *iolock = XFS_IOLOCK_EXCL; 578 *iolock = XFS_IOLOCK_EXCL;
573 xfs_rw_ilock(ip, *iolock); 579 xfs_rw_ilock(ip, *iolock);
574 goto restart; 580 goto restart;
575 } 581 }
576 error = xfs_zero_eof(ip, *pos, i_size_read(inode)); 582 error = xfs_zero_eof(ip, *pos, i_size_read(inode), &zero);
577 if (error) 583 if (error)
578 return error; 584 return error;
579 } 585 }