diff options
Diffstat (limited to 'fs/xfs/xfs_itable.c')
| -rw-r--r-- | fs/xfs/xfs_itable.c | 68 |
1 files changed, 31 insertions, 37 deletions
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index e15df1f70d79..df7605183aa2 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -512,7 +512,7 @@ xfs_bulkstat( int xfs_inumbers_fmt( void __user *ubuffer, /* buffer to write to */ - const xfs_inogrp_t *buffer, /* buffer to read from */ + const struct xfs_inogrp *buffer, /* buffer to read from */ long count, /* # of elements to read */ long *written) /* # of bytes written */ { @@ -527,37 +527,33 @@ xfs_inumbers_fmt( */ int /* error status */ xfs_inumbers( - xfs_mount_t *mp, /* mount point for filesystem */ - xfs_ino_t *lastino, /* last inode returned */ - int *count, /* size of buffer/count returned */ - void __user *ubuffer,/* buffer with inode descriptions */ - inumbers_fmt_pf formatter) + struct xfs_mount *mp,/* mount point for filesystem */ + xfs_ino_t *lastino,/* last inode returned */ + int *count,/* size of buffer/count returned */ + void __user *ubuffer,/* buffer with inode descriptions */ + inumbers_fmt_pf formatter) { - xfs_buf_t *agbp; - xfs_agino_t agino; - xfs_agnumber_t agno; - int bcount; - xfs_inogrp_t *buffer; - int bufidx; - xfs_btree_cur_t *cur; - int error; - xfs_inobt_rec_incore_t r; - int i; - xfs_ino_t ino; - int left; - int tmp; - - ino = (xfs_ino_t)*lastino; - agno = XFS_INO_TO_AGNO(mp, ino); - agino = XFS_INO_TO_AGINO(mp, ino); - left = *count; + xfs_agnumber_t agno = XFS_INO_TO_AGNO(mp, *lastino); + xfs_agino_t agino = XFS_INO_TO_AGINO(mp, *lastino); + struct xfs_btree_cur *cur = NULL; + xfs_buf_t *agbp = NULL; + struct xfs_inogrp *buffer; + int bcount; + int left = *count; + int bufidx = 0; + int error = 0; + *count = 0; + if (agno >= mp->m_sb.sb_agcount || + *lastino != XFS_AGINO_TO_INO(mp, agno, agino)) + return error; + bcount = MIN(left, (int)(PAGE_SIZE / sizeof(*buffer))); buffer = kmem_alloc(bcount * sizeof(*buffer), KM_SLEEP); - error = bufidx = 0; - cur = NULL; - agbp = NULL; while (left > 0 && agno < mp->m_sb.sb_agcount) { + struct xfs_inobt_rec_incore r; + int stat; + if (agbp == NULL) { error = xfs_ialloc_read_agi(mp, NULL, agno, &agbp); if (error) { @@ -574,7 +570,7 @@ xfs_inumbers( cur = xfs_inobt_init_cursor(mp, NULL, agbp, agno, XFS_BTNUM_INO); error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_GE, - &tmp); + &stat); if (error) { xfs_btree_del_cursor(cur, XFS_BTREE_ERROR); cur = NULL; @@ -589,8 +585,8 @@ xfs_inumbers( continue; } } - error = xfs_inobt_get_rec(cur, &r, &i); - if (error || i == 0) { + error = xfs_inobt_get_rec(cur, &r, &stat); + if (error || stat == 0) { xfs_buf_relse(agbp); agbp = NULL; xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); @@ -609,16 +605,15 @@ xfs_inumbers( left--; if (bufidx == bcount) { long written; - if (formatter(ubuffer, buffer, bufidx, &written)) { - error = -EFAULT; + error = formatter(ubuffer, buffer, bufidx, &written); + if (error) break; - } ubuffer += written; *count += bufidx; bufidx = 0; } if (left) { - error = xfs_btree_increment(cur, 0, &tmp); + error = xfs_btree_increment(cur, 0, &stat); if (error) { xfs_btree_del_cursor(cur, XFS_BTREE_ERROR); cur = NULL; @@ -636,9 +631,8 @@ xfs_inumbers( if (!error) { if (bufidx) { long written; - if (formatter(ubuffer, buffer, bufidx, &written)) - error = -EFAULT; - else + error = formatter(ubuffer, buffer, bufidx, &written); + if (!error) *count += bufidx; } *lastino = XFS_AGINO_TO_INO(mp, agno, agino); |