diff options
author | Jiri Kosina <jkosina@suse.cz> | 2013-03-09 10:58:13 +0100 |
---|---|---|
committer | Jiri Kosina <jkosina@suse.cz> | 2013-03-09 11:01:06 +0100 |
commit | 83a44ac8bf4a8e6cbbf0c00ff281a482778f708a (patch) | |
tree | 325be1e4d52372db888396549908f25c5370caee /fs/ext4/extents_status.h | |
parent | 4ba25d3f87fe3ed6634f61da2a6904e2dfd09192 (diff) | |
parent | d381f45c890a3fb136afb0dc1cbe025e066cb981 (diff) |
HID: Merge branch 'master' into for-3.10/hid-driver-transport-cleanups
Sync with Linus' tree. This is necessary to resolve build conflict
caused by dcd9006b1b053c7b ("HID: logitech-dj: do not directly call
hid_output_raw_report() during probe") which issues direct call to
usbhid_submit_report(), but that is gone in this branch and
hid_hw_request() has to be used instead.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'fs/ext4/extents_status.h')
-rw-r--r-- | fs/ext4/extents_status.h | 86 |
1 files changed, 79 insertions, 7 deletions
diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h index 077f82db092a..f190dfe969da 100644 --- a/fs/ext4/extents_status.h +++ b/fs/ext4/extents_status.h @@ -20,10 +20,24 @@ #define es_debug(fmt, ...) no_printk(fmt, ##__VA_ARGS__) #endif +/* + * These flags live in the high bits of extent_status.es_pblk + */ +#define EXTENT_STATUS_WRITTEN (1ULL << 63) +#define EXTENT_STATUS_UNWRITTEN (1ULL << 62) +#define EXTENT_STATUS_DELAYED (1ULL << 61) +#define EXTENT_STATUS_HOLE (1ULL << 60) + +#define EXTENT_STATUS_FLAGS (EXTENT_STATUS_WRITTEN | \ + EXTENT_STATUS_UNWRITTEN | \ + EXTENT_STATUS_DELAYED | \ + EXTENT_STATUS_HOLE) + struct extent_status { struct rb_node rb_node; - ext4_lblk_t start; /* first block extent covers */ - ext4_lblk_t len; /* length of extent in block */ + ext4_lblk_t es_lblk; /* first logical block extent covers */ + ext4_lblk_t es_len; /* length of extent in block */ + ext4_fsblk_t es_pblk; /* first physical block */ }; struct ext4_es_tree { @@ -35,11 +49,69 @@ extern int __init ext4_init_es(void); extern void ext4_exit_es(void); extern void ext4_es_init_tree(struct ext4_es_tree *tree); -extern int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t start, +extern int ext4_es_insert_extent(struct inode *inode, ext4_lblk_t lblk, + ext4_lblk_t len, ext4_fsblk_t pblk, + unsigned long long status); +extern int ext4_es_remove_extent(struct inode *inode, ext4_lblk_t lblk, ext4_lblk_t len); -extern int ext4_es_remove_extent(struct inode *inode, ext4_lblk_t start, - ext4_lblk_t len); -extern ext4_lblk_t ext4_es_find_extent(struct inode *inode, - struct extent_status *es); +extern void ext4_es_find_delayed_extent(struct inode *inode, ext4_lblk_t lblk, + struct extent_status *es); +extern int ext4_es_lookup_extent(struct inode *inode, ext4_lblk_t lblk, + struct extent_status *es); + +static inline int ext4_es_is_written(struct extent_status *es) +{ + return (es->es_pblk & EXTENT_STATUS_WRITTEN) != 0; +} + +static inline int ext4_es_is_unwritten(struct extent_status *es) +{ + return (es->es_pblk & EXTENT_STATUS_UNWRITTEN) != 0; +} + +static inline int ext4_es_is_delayed(struct extent_status *es) +{ + return (es->es_pblk & EXTENT_STATUS_DELAYED) != 0; +} + +static inline int ext4_es_is_hole(struct extent_status *es) +{ + return (es->es_pblk & EXTENT_STATUS_HOLE) != 0; +} + +static inline ext4_fsblk_t ext4_es_status(struct extent_status *es) +{ + return (es->es_pblk & EXTENT_STATUS_FLAGS); +} + +static inline ext4_fsblk_t ext4_es_pblock(struct extent_status *es) +{ + return (es->es_pblk & ~EXTENT_STATUS_FLAGS); +} + +static inline void ext4_es_store_pblock(struct extent_status *es, + ext4_fsblk_t pb) +{ + ext4_fsblk_t block; + + block = (pb & ~EXTENT_STATUS_FLAGS) | + (es->es_pblk & EXTENT_STATUS_FLAGS); + es->es_pblk = block; +} + +static inline void ext4_es_store_status(struct extent_status *es, + unsigned long long status) +{ + ext4_fsblk_t block; + + block = (status & EXTENT_STATUS_FLAGS) | + (es->es_pblk & ~EXTENT_STATUS_FLAGS); + es->es_pblk = block; +} + +extern void ext4_es_register_shrinker(struct super_block *sb); +extern void ext4_es_unregister_shrinker(struct super_block *sb); +extern void ext4_es_lru_add(struct inode *inode); +extern void ext4_es_lru_del(struct inode *inode); #endif /* _EXT4_EXTENTS_STATUS_H */ |