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Diffstat (limited to 'fs/xfs/xfs_bmap_util.c')
-rw-r--r--fs/xfs/xfs_bmap_util.c97
1 files changed, 47 insertions, 50 deletions
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 19e11d1da6..a4d9fbc21b 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -440,7 +440,7 @@ out_unlock_iolock:
* if the ranges only partially overlap them, so it is up to the caller to
* ensure that partial blocks are not passed in.
*/
-int
+void
xfs_bmap_punch_delalloc_range(
struct xfs_inode *ip,
xfs_off_t start_byte,
@@ -452,7 +452,6 @@ xfs_bmap_punch_delalloc_range(
xfs_fileoff_t end_fsb = XFS_B_TO_FSB(mp, end_byte);
struct xfs_bmbt_irec got, del;
struct xfs_iext_cursor icur;
- int error = 0;
ASSERT(!xfs_need_iread_extents(ifp));
@@ -476,26 +475,22 @@ xfs_bmap_punch_delalloc_range(
continue;
}
- error = xfs_bmap_del_extent_delay(ip, XFS_DATA_FORK, &icur,
- &got, &del);
- if (error || !xfs_iext_get_extent(ifp, &icur, &got))
+ xfs_bmap_del_extent_delay(ip, XFS_DATA_FORK, &icur, &got, &del);
+ if (!xfs_iext_get_extent(ifp, &icur, &got))
break;
}
out_unlock:
xfs_iunlock(ip, XFS_ILOCK_EXCL);
- return error;
}
/*
* Test whether it is appropriate to check an inode for and free post EOF
- * blocks. The 'force' parameter determines whether we should also consider
- * regular files that are marked preallocated or append-only.
+ * blocks.
*/
bool
xfs_can_free_eofblocks(
- struct xfs_inode *ip,
- bool force)
+ struct xfs_inode *ip)
{
struct xfs_bmbt_irec imap;
struct xfs_mount *mp = ip->i_mount;
@@ -529,11 +524,11 @@ xfs_can_free_eofblocks(
return false;
/*
- * Do not free real preallocated or append-only files unless the file
- * has delalloc blocks and we are forced to remove them.
+ * Only free real extents for inodes with persistent preallocations or
+ * the append-only flag.
*/
if (ip->i_diflags & (XFS_DIFLAG_PREALLOC | XFS_DIFLAG_APPEND))
- if (!force || ip->i_delayed_blks == 0)
+ if (ip->i_delayed_blks == 0)
return false;
/*
@@ -542,7 +537,7 @@ xfs_can_free_eofblocks(
* forever.
*/
end_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)XFS_ISIZE(ip));
- if (XFS_IS_REALTIME_INODE(ip) && mp->m_sb.sb_rextsize > 1)
+ if (xfs_inode_has_bigrtalloc(ip))
end_fsb = xfs_rtb_roundup_rtx(mp, end_fsb);
last_fsb = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes);
if (last_fsb <= end_fsb)
@@ -587,6 +582,22 @@ xfs_free_eofblocks(
/* Wait on dio to ensure i_size has settled. */
inode_dio_wait(VFS_I(ip));
+ /*
+ * For preallocated files only free delayed allocations.
+ *
+ * Note that this means we also leave speculative preallocations in
+ * place for preallocated files.
+ */
+ if (ip->i_diflags & (XFS_DIFLAG_PREALLOC | XFS_DIFLAG_APPEND)) {
+ if (ip->i_delayed_blks) {
+ xfs_bmap_punch_delalloc_range(ip,
+ round_up(XFS_ISIZE(ip), mp->m_sb.sb_blocksize),
+ LLONG_MAX);
+ }
+ xfs_inode_clear_eofblocks_tag(ip);
+ return 0;
+ }
+
error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp);
if (error) {
ASSERT(xfs_is_shutdown(mp));
@@ -713,41 +724,37 @@ xfs_alloc_file_space(
if (error)
break;
- error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK,
+ error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK,
XFS_IEXT_ADD_NOSPLIT_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip,
- XFS_IEXT_ADD_NOSPLIT_CNT);
- if (error)
- goto error;
-
- error = xfs_bmapi_write(tp, ip, startoffset_fsb,
- allocatesize_fsb, XFS_BMAPI_PREALLOC, 0, imapp,
- &nimaps);
if (error)
goto error;
- ip->i_diflags |= XFS_DIFLAG_PREALLOC;
- xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-
- error = xfs_trans_commit(tp);
- xfs_iunlock(ip, XFS_ILOCK_EXCL);
- if (error)
- break;
-
/*
* If the allocator cannot find a single free extent large
* enough to cover the start block of the requested range,
- * xfs_bmapi_write will return 0 but leave *nimaps set to 0.
+ * xfs_bmapi_write will return -ENOSR.
*
* In that case we simply need to keep looping with the same
* startoffset_fsb so that one of the following allocations
* will eventually reach the requested range.
*/
- if (nimaps) {
+ error = xfs_bmapi_write(tp, ip, startoffset_fsb,
+ allocatesize_fsb, XFS_BMAPI_PREALLOC, 0, imapp,
+ &nimaps);
+ if (error) {
+ if (error != -ENOSR)
+ goto error;
+ error = 0;
+ } else {
startoffset_fsb += imapp->br_blockcount;
allocatesize_fsb -= imapp->br_blockcount;
}
+
+ ip->i_diflags |= XFS_DIFLAG_PREALLOC;
+ xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+
+ error = xfs_trans_commit(tp);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
}
return error;
@@ -775,10 +782,8 @@ xfs_unmap_extent(
if (error)
return error;
- error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK,
+ error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK,
XFS_IEXT_PUNCH_HOLE_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip, XFS_IEXT_PUNCH_HOLE_CNT);
if (error)
goto out_trans_cancel;
@@ -843,7 +848,7 @@ xfs_free_file_space(
endoffset_fsb = XFS_B_TO_FSBT(mp, offset + len);
/* We can only free complete realtime extents. */
- if (XFS_IS_REALTIME_INODE(ip) && mp->m_sb.sb_rextsize > 1) {
+ if (xfs_inode_has_bigrtalloc(ip)) {
startoffset_fsb = xfs_rtb_roundup_rtx(mp, startoffset_fsb);
endoffset_fsb = xfs_rtb_rounddown_rtx(mp, endoffset_fsb);
}
@@ -900,7 +905,7 @@ xfs_prepare_shift(
* Trim eofblocks to avoid shifting uninitialized post-eof preallocation
* into the accessible region of the file.
*/
- if (xfs_can_free_eofblocks(ip, true)) {
+ if (xfs_can_free_eofblocks(ip)) {
error = xfs_free_eofblocks(ip);
if (error)
return error;
@@ -1054,10 +1059,8 @@ xfs_insert_file_space(
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);
- error = xfs_iext_count_may_overflow(ip, XFS_DATA_FORK,
+ error = xfs_iext_count_extend(tp, ip, XFS_DATA_FORK,
XFS_IEXT_PUNCH_HOLE_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip, XFS_IEXT_PUNCH_HOLE_CNT);
if (error)
goto out_trans_cancel;
@@ -1283,23 +1286,17 @@ xfs_swap_extent_rmap(
trace_xfs_swap_extent_rmap_remap_piece(tip, &uirec);
if (xfs_bmap_is_real_extent(&uirec)) {
- error = xfs_iext_count_may_overflow(ip,
+ error = xfs_iext_count_extend(tp, ip,
XFS_DATA_FORK,
XFS_IEXT_SWAP_RMAP_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip,
- XFS_IEXT_SWAP_RMAP_CNT);
if (error)
goto out;
}
if (xfs_bmap_is_real_extent(&irec)) {
- error = xfs_iext_count_may_overflow(tip,
+ error = xfs_iext_count_extend(tp, tip,
XFS_DATA_FORK,
XFS_IEXT_SWAP_RMAP_CNT);
- if (error == -EFBIG)
- error = xfs_iext_count_upgrade(tp, ip,
- XFS_IEXT_SWAP_RMAP_CNT);
if (error)
goto out;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-12 08:18:12 +0000