These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / fs / xfs / libxfs / xfs_alloc.h

diff --git a/kernel/fs/xfs/libxfs/xfs_alloc.h b/kernel/fs/xfs/libxfs/xfs_alloc.h
index d1b4b6a..0ecde4d 100644 (file)
--- a/kernel/fs/xfs/libxfs/xfs_alloc.h
+++ b/kernel/fs/xfs/libxfs/xfs_alloc.h
@@ -101,6 +101,7 @@ typedef struct xfs_alloc_arg {
        struct xfs_mount *mp;           /* file system mount point */
        struct xfs_buf  *agbp;          /* buffer for a.g. freelist header */
        struct xfs_perag *pag;          /* per-ag struct for this agno */
+       struct xfs_inode *ip;           /* for userdata zeroing method */
        xfs_fsblock_t   fsbno;          /* file system block number */
        xfs_agnumber_t  agno;           /* allocation group number */
        xfs_agblock_t   agbno;          /* allocation group-relative block # */
@@ -112,27 +113,28 @@ typedef struct xfs_alloc_arg {
        xfs_extlen_t    total;          /* total blocks needed in xaction */
        xfs_extlen_t    alignment;      /* align answer to multiple of this */
        xfs_extlen_t    minalignslop;   /* slop for minlen+alignment calcs */
+       xfs_agblock_t   min_agbno;      /* set an agbno range for NEAR allocs */
+       xfs_agblock_t   max_agbno;      /* ... */
        xfs_extlen_t    len;            /* output: actual size of extent */
        xfs_alloctype_t type;           /* allocation type XFS_ALLOCTYPE_... */
        xfs_alloctype_t otype;          /* original allocation type */
        char            wasdel;         /* set if allocation was prev delayed */
        char            wasfromfl;      /* set if allocation is from freelist */
        char            isfl;           /* set if is freelist blocks - !acctg */
-       char            userdata;       /* set if this is user data */
+       char            userdata;       /* mask defining userdata treatment */
        xfs_fsblock_t   firstblock;     /* io first block allocated */
 } xfs_alloc_arg_t;
 
 /*
  * Defines for userdata
  */
-#define XFS_ALLOC_USERDATA             1       /* allocation is for user data*/
-#define XFS_ALLOC_INITIAL_USER_DATA    2       /* special case start of file */
+#define XFS_ALLOC_USERDATA             (1 << 0)/* allocation is for user data*/
+#define XFS_ALLOC_INITIAL_USER_DATA    (1 << 1)/* special case start of file */
+#define XFS_ALLOC_USERDATA_ZERO                (1 << 2)/* zero extent on allocation */
 
-/*
- * Find the length of the longest extent in an AG.
- */
-xfs_extlen_t
-xfs_alloc_longest_free_extent(struct xfs_mount *mp,
+xfs_extlen_t xfs_alloc_longest_free_extent(struct xfs_mount *mp,
+               struct xfs_perag *pag, xfs_extlen_t need);
+unsigned int xfs_alloc_min_freelist(struct xfs_mount *mp,
                struct xfs_perag *pag);
 
 /*