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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-17 08:38:30 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-17 08:38:30 -0800 |
commit | c397f8fa4379040bada53256c848e62c8b060392 (patch) | |
tree | 8101efb5c0c3b0a73e5e65f3474843c0914cc4d0 /fs/ocfs2/ocfs2.h | |
parent | 796e1c55717e9a6ff5c81b12289ffa1ffd919b6f (diff) | |
parent | aaaf5fbf56f16c81a653713cc333b18ad6e25ea9 (diff) | |
download | op-kernel-dev-c397f8fa4379040bada53256c848e62c8b060392.zip op-kernel-dev-c397f8fa4379040bada53256c848e62c8b060392.tar.gz |
Merge branch 'akpm' (patches from Andrew)
Merge fifth set of updates from Andrew Morton:
- A few things which were awaiting merges from linux-next:
- rtc
- ocfs2
- misc others
- Willy's "dax" feature: direct fs access to memory (mainly NV-DIMMs)
which isn't backed by pageframes.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (37 commits)
rtc: add driver for DS1685 family of real time clocks
MAINTAINERS: add entry for Maxim PMICs on Samsung boards
lib/Kconfig: use bool instead of boolean
powerpc: drop _PAGE_FILE and pte_file()-related helpers
ocfs2: set append dio as a ro compat feature
ocfs2: wait for orphan recovery first once append O_DIRECT write crash
ocfs2: complete the rest request through buffer io
ocfs2: do not fallback to buffer I/O write if appending
ocfs2: allocate blocks in ocfs2_direct_IO_get_blocks
ocfs2: implement ocfs2_direct_IO_write
ocfs2: add orphan recovery types in ocfs2_recover_orphans
ocfs2: add functions to add and remove inode in orphan dir
ocfs2: prepare some interfaces used in append direct io
MAINTAINERS: fix spelling mistake & remove trailing WS
dax: does not work correctly with virtual aliasing caches
brd: rename XIP to DAX
ext4: add DAX functionality
dax: add dax_zero_page_range
ext2: get rid of most mentions of XIP in ext2
ext2: remove ext2_aops_xip
...
Diffstat (limited to 'fs/ocfs2/ocfs2.h')
-rw-r--r-- | fs/ocfs2/ocfs2.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index fdbcbfe..8490c64 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -209,6 +209,11 @@ struct ocfs2_lock_res { #endif }; +enum ocfs2_orphan_reco_type { + ORPHAN_NO_NEED_TRUNCATE = 0, + ORPHAN_NEED_TRUNCATE, +}; + enum ocfs2_orphan_scan_state { ORPHAN_SCAN_ACTIVE, ORPHAN_SCAN_INACTIVE @@ -495,6 +500,14 @@ static inline int ocfs2_writes_unwritten_extents(struct ocfs2_super *osb) return 0; } +static inline int ocfs2_supports_append_dio(struct ocfs2_super *osb) +{ + if (osb->s_feature_ro_compat & OCFS2_FEATURE_RO_COMPAT_APPEND_DIO) + return 1; + return 0; +} + + static inline int ocfs2_supports_inline_data(struct ocfs2_super *osb) { if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_INLINE_DATA) @@ -726,6 +739,16 @@ static inline unsigned int ocfs2_clusters_for_bytes(struct super_block *sb, return clusters; } +static inline unsigned int ocfs2_bytes_to_clusters(struct super_block *sb, + u64 bytes) +{ + int cl_bits = OCFS2_SB(sb)->s_clustersize_bits; + unsigned int clusters; + + clusters = (unsigned int)(bytes >> cl_bits); + return clusters; +} + static inline u64 ocfs2_blocks_for_bytes(struct super_block *sb, u64 bytes) { |