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| author | Jan Kara | 2015-12-07 21:10:26 +0100 |
|---|---|---|
| committer | Theodore Ts'o | 2015-12-07 21:10:26 +0100 |
| commit | c86d8db33a922da808a5560aa15ed663a9569b37 (patch) | |
| tree | 64ee357906cb5d2a0408a9613532460e49b7b6c9 /include/trace/events/ext4.h | |
| parent | ext4: provide ext4_issue_zeroout() (diff) | |
| download | kernel-qcow2-linux-c86d8db33a922da808a5560aa15ed663a9569b37.tar.gz kernel-qcow2-linux-c86d8db33a922da808a5560aa15ed663a9569b37.tar.xz kernel-qcow2-linux-c86d8db33a922da808a5560aa15ed663a9569b37.zip | |
ext4: implement allocation of pre-zeroed blocks
DAX page fault path needs to get blocks that are pre-zeroed to avoid
races when two concurrent page faults happen in the same block of a
file. Implement support for this in ext4_map_blocks().
Signed-off-by: Jan Kara <jack@suse.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include/trace/events/ext4.h')
| -rw-r--r-- | include/trace/events/ext4.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index 5f2ace56efc5..4e4b2fa78609 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -42,7 +42,8 @@ struct extent_status; { EXT4_GET_BLOCKS_CONVERT, "CONVERT" }, \ { EXT4_GET_BLOCKS_METADATA_NOFAIL, "METADATA_NOFAIL" }, \ { EXT4_GET_BLOCKS_NO_NORMALIZE, "NO_NORMALIZE" }, \ - { EXT4_GET_BLOCKS_KEEP_SIZE, "KEEP_SIZE" }) + { EXT4_GET_BLOCKS_KEEP_SIZE, "KEEP_SIZE" }, \ + { EXT4_GET_BLOCKS_ZERO, "ZERO" }) #define show_mflags(flags) __print_flags(flags, "", \ { EXT4_MAP_NEW, "N" }, \ |