diff options
| -rw-r--r-- | fs/xfs/xfs_alloc.c | 26 | ||||
| -rw-r--r-- | fs/xfs/xfs_alloc.h | 6 | ||||
| -rw-r--r-- | fs/xfs/xfs_bmap.c | 12 | ||||
| -rw-r--r-- | fs/xfs/xfs_filestream.c | 9 |
4 files changed, 31 insertions, 22 deletions
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index 028e44e58ea..2cf944eb796 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -1872,6 +1872,25 @@ xfs_alloc_compute_maxlevels( } /* + * Find the length of the longest extent in an AG. + */ +xfs_extlen_t +xfs_alloc_longest_free_extent( + struct xfs_mount *mp, + struct xfs_perag *pag) +{ + xfs_extlen_t need, delta = 0; + + need = XFS_MIN_FREELIST_PAG(pag, mp); + if (need > pag->pagf_flcount) + delta = need - pag->pagf_flcount; + + if (pag->pagf_longest > delta) + return pag->pagf_longest - delta; + return pag->pagf_flcount > 0 || pag->pagf_longest > 0; +} + +/* * Decide whether to use this allocation group for this allocation. * If so, fix up the btree freelist's size. */ @@ -1923,15 +1942,12 @@ xfs_alloc_fix_freelist( } if (!(flags & XFS_ALLOC_FLAG_FREEING)) { - need = XFS_MIN_FREELIST_PAG(pag, mp); - delta = need > pag->pagf_flcount ? need - pag->pagf_flcount : 0; /* * If it looks like there isn't a long enough extent, or enough * total blocks, reject it. */ - longest = (pag->pagf_longest > delta) ? - (pag->pagf_longest - delta) : - (pag->pagf_flcount > 0 || pag->pagf_longest > 0); + need = XFS_MIN_FREELIST_PAG(pag, mp); + longest = xfs_alloc_longest_free_extent(mp, pag); if ((args->minlen + args->alignment + args->minalignslop - 1) > longest || ((int)(pag->pagf_freeblks + pag->pagf_flcount - diff --git a/fs/xfs/xfs_alloc.h b/fs/xfs/xfs_alloc.h index 588172796f7..e704caee10d 100644 --- a/fs/xfs/xfs_alloc.h +++ b/fs/xfs/xfs_alloc.h @@ -100,6 +100,12 @@ typedef struct xfs_alloc_arg { #define XFS_ALLOC_USERDATA 1 /* allocation is for user data*/ #define XFS_ALLOC_INITIAL_USER_DATA 2 /* special case start of file */ +/* + * Find the length of the longest extent in an AG. + */ +xfs_extlen_t +xfs_alloc_longest_free_extent(struct xfs_mount *mp, + struct xfs_perag *pag); #ifdef __KERNEL__ diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 27062d0a879..07b7d0d59d8 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -2712,9 +2712,6 @@ xfs_bmap_btalloc( xfs_agnumber_t startag; xfs_alloc_arg_t args; xfs_extlen_t blen; - xfs_extlen_t delta; - xfs_extlen_t longest; - xfs_extlen_t need; xfs_extlen_t nextminlen = 0; xfs_perag_t *pag; int nullfb; /* true if ap->firstblock isn't set */ @@ -2796,13 +2793,8 @@ xfs_bmap_btalloc( * See xfs_alloc_fix_freelist... */ if (pag->pagf_init) { - need = XFS_MIN_FREELIST_PAG(pag, mp); - delta = need > pag->pagf_flcount ? - need - pag->pagf_flcount : 0; - longest = (pag->pagf_longest > delta) ? - (pag->pagf_longest - delta) : - (pag->pagf_flcount > 0 || - pag->pagf_longest > 0); + xfs_extlen_t longest; + longest = xfs_alloc_longest_free_extent(mp, pag); if (blen < longest) blen = longest; } else diff --git a/fs/xfs/xfs_filestream.c b/fs/xfs/xfs_filestream.c index f3bb75da384..6c87c8f304e 100644 --- a/fs/xfs/xfs_filestream.c +++ b/fs/xfs/xfs_filestream.c @@ -140,7 +140,7 @@ _xfs_filestream_pick_ag( xfs_extlen_t minlen) { int err, trylock, nscan; - xfs_extlen_t delta, longest, need, free, minfree, maxfree = 0; + xfs_extlen_t longest, free, minfree, maxfree = 0; xfs_agnumber_t ag, max_ag = NULLAGNUMBER; struct xfs_perag *pag; @@ -186,12 +186,7 @@ _xfs_filestream_pick_ag( goto next_ag; } - need = XFS_MIN_FREELIST_PAG(pag, mp); - delta = need > pag->pagf_flcount ? need - pag->pagf_flcount : 0; - longest = (pag->pagf_longest > delta) ? - (pag->pagf_longest - delta) : - (pag->pagf_flcount > 0 || pag->pagf_longest > 0); - + longest = xfs_alloc_longest_free_extent(mp, pag); if (((minlen && longest >= minlen) || (!minlen && pag->pagf_freeblks >= minfree)) && (!pag->pagf_metadata || !(flags & XFS_PICK_USERDATA) || |