diff options
| -rw-r--r-- | fs/xfs/xfs_sysfs.c | 7 | ||||
| -rw-r--r-- | fs/xfs/xfs_zone_alloc.h | 4 | ||||
| -rw-r--r-- | fs/xfs/xfs_zone_gc.c | 17 |
3 files changed, 27 insertions, 1 deletions
diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c index 6c7909838234..4527119b2961 100644 --- a/fs/xfs/xfs_sysfs.c +++ b/fs/xfs/xfs_sysfs.c @@ -14,6 +14,7 @@ #include "xfs_log_priv.h" #include "xfs_mount.h" #include "xfs_zones.h" +#include "xfs_zone_alloc.h" struct xfs_sysfs_attr { struct attribute attr; @@ -724,6 +725,7 @@ zonegc_low_space_store( const char *buf, size_t count) { + struct xfs_mount *mp = zoned_to_mp(kobj); int ret; unsigned int val; @@ -734,7 +736,10 @@ zonegc_low_space_store( if (val > 100) return -EINVAL; - zoned_to_mp(kobj)->m_zonegc_low_space = val; + if (mp->m_zonegc_low_space != val) { + mp->m_zonegc_low_space = val; + xfs_zone_gc_wakeup(mp); + } return count; } diff --git a/fs/xfs/xfs_zone_alloc.h b/fs/xfs/xfs_zone_alloc.h index 4db02816d0fd..8b2ef98c81ef 100644 --- a/fs/xfs/xfs_zone_alloc.h +++ b/fs/xfs/xfs_zone_alloc.h @@ -51,6 +51,7 @@ int xfs_mount_zones(struct xfs_mount *mp); void xfs_unmount_zones(struct xfs_mount *mp); void xfs_zone_gc_start(struct xfs_mount *mp); void xfs_zone_gc_stop(struct xfs_mount *mp); +void xfs_zone_gc_wakeup(struct xfs_mount *mp); #else static inline int xfs_mount_zones(struct xfs_mount *mp) { @@ -65,6 +66,9 @@ static inline void xfs_zone_gc_start(struct xfs_mount *mp) static inline void xfs_zone_gc_stop(struct xfs_mount *mp) { } +static inline void xfs_zone_gc_wakeup(struct xfs_mount *mp) +{ +} #endif /* CONFIG_XFS_RT */ #endif /* _XFS_ZONE_ALLOC_H */ diff --git a/fs/xfs/xfs_zone_gc.c b/fs/xfs/xfs_zone_gc.c index 0ff710fa0ee7..a8f71231f351 100644 --- a/fs/xfs/xfs_zone_gc.c +++ b/fs/xfs/xfs_zone_gc.c @@ -1171,6 +1171,23 @@ xfs_zone_gc_stop( kthread_park(mp->m_zone_info->zi_gc_thread); } +void +xfs_zone_gc_wakeup( + struct xfs_mount *mp) +{ + struct super_block *sb = mp->m_super; + + /* + * If we are unmounting the file system we must not try to + * wake gc as m_zone_info might have been freed already. + */ + if (down_read_trylock(&sb->s_umount)) { + if (!xfs_is_readonly(mp)) + wake_up_process(mp->m_zone_info->zi_gc_thread); + up_read(&sb->s_umount); + } +} + int xfs_zone_gc_mount( struct xfs_mount *mp) |