Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...

[cascardo/linux.git] / fs / xfs / xfs_mount.h

diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 5861b49..a62e897 100644 (file)
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -103,6 +103,16 @@ extern int xfs_icsb_modify_counters(struct xfs_mount *, xfs_sb_field_t,
        xfs_mod_incore_sb(mp, field, delta, rsvd)
 #endif
 
+/* dynamic preallocation free space thresholds, 5% down to 1% */
+enum {
+       XFS_LOWSP_1_PCNT = 0,
+       XFS_LOWSP_2_PCNT,
+       XFS_LOWSP_3_PCNT,
+       XFS_LOWSP_4_PCNT,
+       XFS_LOWSP_5_PCNT,
+       XFS_LOWSP_MAX,
+};
+
 typedef struct xfs_mount {
        struct super_block      *m_super;
        xfs_tid_t               m_tid;          /* next unused tid for fs */
@@ -202,6 +212,8 @@ typedef struct xfs_mount {
        __int64_t               m_update_flags; /* sb flags we need to update
                                                   on the next remount,rw */
        struct shrinker         m_inode_shrink; /* inode reclaim shrinker */
+       int64_t                 m_low_space[XFS_LOWSP_MAX];
+                                               /* low free space thresholds */
 } xfs_mount_t;
 
 /*
@@ -379,6 +391,8 @@ extern int  xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_t);
 
 extern int     xfs_dev_is_read_only(struct xfs_mount *, char *);
 
+extern void    xfs_set_low_space_thresholds(struct xfs_mount *);
+
 #endif /* __KERNEL__ */
 
 extern void    xfs_mod_sb(struct xfs_trans *, __int64_t);