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Diffstat (limited to 'fs/xfs/xfs_bmap.c')
-rw-r--r--fs/xfs/xfs_bmap.c127
1 files changed, 78 insertions, 49 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index de31624..6f5d283 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -301,6 +301,19 @@ xfs_bmap_search_extents(
xfs_bmbt_irec_t *gotp, /* out: extent entry found */
xfs_bmbt_irec_t *prevp); /* out: previous extent entry found */
+/*
+ * Check the last inode extent to determine whether this allocation will result
+ * in blocks being allocated at the end of the file. When we allocate new data
+ * blocks at the end of the file which do not start at the previous data block,
+ * we will try to align the new blocks at stripe unit boundaries.
+ */
+STATIC int /* error */
+xfs_bmap_isaeof(
+ xfs_inode_t *ip, /* incore inode pointer */
+ xfs_fileoff_t off, /* file offset in fsblocks */
+ int whichfork, /* data or attribute fork */
+ char *aeof); /* return value */
+
#ifdef XFS_BMAP_TRACE
/*
* Add a bmap trace buffer entry. Base routine for the others.
@@ -4532,18 +4545,17 @@ xfs_bmapi(
xfs_extlen_t alen; /* allocated extent length */
xfs_fileoff_t aoff; /* allocated file offset */
xfs_bmalloca_t bma; /* args for xfs_bmap_alloc */
- char contig; /* allocation must be one extent */
xfs_btree_cur_t *cur; /* bmap btree cursor */
- char delay; /* this request is for delayed alloc */
xfs_fileoff_t end; /* end of mapped file region */
int eof; /* we've hit the end of extent list */
+ char contig; /* allocation must be one extent */
+ char delay; /* this request is for delayed alloc */
+ char exact; /* don't do all of wasdelayed extent */
xfs_bmbt_rec_t *ep; /* extent list entry pointer */
int error; /* error return */
- char exact; /* don't do all of wasdelayed extent */
xfs_bmbt_irec_t got; /* current extent list record */
xfs_ifork_t *ifp; /* inode fork pointer */
xfs_extlen_t indlen; /* indirect blocks length */
- char inhole; /* current location is hole in file */
xfs_extnum_t lastx; /* last useful extent number */
int logflags; /* flags for transaction logging */
xfs_extlen_t minleft; /* min blocks left after allocation */
@@ -4554,13 +4566,15 @@ xfs_bmapi(
xfs_extnum_t nextents; /* number of extents in file */
xfs_fileoff_t obno; /* old block number (offset) */
xfs_bmbt_irec_t prev; /* previous extent list record */
- char stateless; /* ignore state flag set */
int tmp_logflags; /* temp flags holder */
+ int whichfork; /* data or attr fork */
+ char inhole; /* current location is hole in file */
+ char stateless; /* ignore state flag set */
char trim; /* output trimmed to match range */
char userdata; /* allocating non-metadata */
char wasdelay; /* old extent was delayed */
- int whichfork; /* data or attr fork */
char wr; /* this is a write request */
+ char rt; /* this is a realtime file */
char rsvd; /* OK to allocate reserved blocks */
#ifdef DEBUG
xfs_fileoff_t orig_bno; /* original block number value */
@@ -4590,6 +4604,7 @@ xfs_bmapi(
}
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
+ rt = XFS_IS_REALTIME_INODE(ip);
ifp = XFS_IFORK_PTR(ip, whichfork);
ASSERT(ifp->if_ext_max ==
XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
@@ -4694,9 +4709,16 @@ xfs_bmapi(
}
minlen = contig ? alen : 1;
if (delay) {
- indlen = (xfs_extlen_t)
- xfs_bmap_worst_indlen(ip, alen);
- ASSERT(indlen > 0);
+ xfs_extlen_t extsz = 0;
+
+ /* Figure out the extent size, adjust alen */
+ if (rt) {
+ if (!(extsz = ip->i_d.di_extsize))
+ extsz = mp->m_sb.sb_rextsize;
+ alen = roundup(alen, extsz);
+ extsz = alen / mp->m_sb.sb_rextsize;
+ }
+
/*
* Make a transaction-less quota reservation for
* delayed allocation blocks. This number gets
@@ -4704,8 +4726,10 @@ xfs_bmapi(
* We return EDQUOT if we haven't allocated
* blks already inside this loop;
*/
- if (XFS_TRANS_RESERVE_BLKQUOTA(
- mp, NULL, ip, (long)alen)) {
+ if (XFS_TRANS_RESERVE_QUOTA_NBLKS(
+ mp, NULL, ip, (long)alen, 0,
+ rt ? XFS_QMOPT_RES_RTBLKS :
+ XFS_QMOPT_RES_REGBLKS)) {
if (n == 0) {
*nmap = 0;
ASSERT(cur == NULL);
@@ -4718,40 +4742,34 @@ xfs_bmapi(
* Split changing sb for alen and indlen since
* they could be coming from different places.
*/
- if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) {
- xfs_extlen_t extsz;
- xfs_extlen_t ralen;
- if (!(extsz = ip->i_d.di_extsize))
- extsz = mp->m_sb.sb_rextsize;
- ralen = roundup(alen, extsz);
- ralen = ralen / mp->m_sb.sb_rextsize;
- if (xfs_mod_incore_sb(mp,
- XFS_SBS_FREXTENTS,
- -(ralen), rsvd)) {
- if (XFS_IS_QUOTA_ON(ip->i_mount))
- XFS_TRANS_UNRESERVE_BLKQUOTA(
- mp, NULL, ip,
- (long)alen);
- break;
- }
- } else {
- if (xfs_mod_incore_sb(mp,
- XFS_SBS_FDBLOCKS,
- -(alen), rsvd)) {
- if (XFS_IS_QUOTA_ON(ip->i_mount))
- XFS_TRANS_UNRESERVE_BLKQUOTA(
- mp, NULL, ip,
- (long)alen);
- break;
- }
- }
+ indlen = (xfs_extlen_t)
+ xfs_bmap_worst_indlen(ip, alen);
+ ASSERT(indlen > 0);
- if (xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS,
- -(indlen), rsvd)) {
- XFS_TRANS_UNRESERVE_BLKQUOTA(
- mp, NULL, ip, (long)alen);
+ if (rt)
+ error = xfs_mod_incore_sb(mp,
+ XFS_SBS_FREXTENTS,
+ -(extsz), rsvd);
+ else
+ error = xfs_mod_incore_sb(mp,
+ XFS_SBS_FDBLOCKS,
+ -(alen), rsvd);
+ if (!error)
+ error = xfs_mod_incore_sb(mp,
+ XFS_SBS_FDBLOCKS,
+ -(indlen), rsvd);
+
+ if (error) {
+ if (XFS_IS_QUOTA_ON(ip->i_mount))
+ /* unreserve the blocks now */
+ XFS_TRANS_UNRESERVE_QUOTA_NBLKS(
+ mp, NULL, ip,
+ (long)alen, 0, rt ?
+ XFS_QMOPT_RES_RTBLKS :
+ XFS_QMOPT_RES_REGBLKS);
break;
}
+
ip->i_delayed_blks += alen;
abno = NULLSTARTBLOCK(indlen);
} else {
@@ -5376,13 +5394,24 @@ xfs_bunmapi(
}
if (wasdel) {
ASSERT(STARTBLOCKVAL(del.br_startblock) > 0);
- xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS,
- (int)del.br_blockcount, rsvd);
- /* Unreserve our quota space */
- XFS_TRANS_RESERVE_QUOTA_NBLKS(
- mp, NULL, ip, -((long)del.br_blockcount), 0,
- isrt ? XFS_QMOPT_RES_RTBLKS :
+ /* Update realtim/data freespace, unreserve quota */
+ if (isrt) {
+ xfs_filblks_t rtexts;
+
+ rtexts = XFS_FSB_TO_B(mp, del.br_blockcount);
+ do_div(rtexts, mp->m_sb.sb_rextsize);
+ xfs_mod_incore_sb(mp, XFS_SBS_FREXTENTS,
+ (int)rtexts, rsvd);
+ XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, NULL, ip,
+ -((long)del.br_blockcount), 0,
+ XFS_QMOPT_RES_RTBLKS);
+ } else {
+ xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS,
+ (int)del.br_blockcount, rsvd);
+ XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, NULL, ip,
+ -((long)del.br_blockcount), 0,
XFS_QMOPT_RES_REGBLKS);
+ }
ip->i_delayed_blks -= del.br_blockcount;
if (cur)
cur->bc_private.b.flags |=
@@ -5714,7 +5743,7 @@ unlock_and_return:
* blocks at the end of the file which do not start at the previous data block,
* we will try to align the new blocks at stripe unit boundaries.
*/
-int /* error */
+STATIC int /* error */
xfs_bmap_isaeof(
xfs_inode_t *ip, /* incore inode pointer */
xfs_fileoff_t off, /* file offset in fsblocks */
generated by cgit v1.1 at 2024-11-10 14:41:10 +0000