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| author |   Andreas Gruenbacher <agruenba@redhat.com> | 2019-06-27 17:28:40 -0700 |
|---|---|---|
| committer |   Darrick J. Wong <darrick.wong@oracle.com> | 2019-06-27 17:28:40 -0700 |
| commit | 8d3e72a180b42c01ec00045e1bb8eb91175adafe (patch) | |
| tree | 28ceebc6e241391ac9a4f1a44e9da6122d02ba37 /include/linux/iomap.h | |
| parent | Linux 5.2-rc4 (diff) | |
| download | linux-dev-8d3e72a180b42c01ec00045e1bb8eb91175adafe.tar.xz linux-dev-8d3e72a180b42c01ec00045e1bb8eb91175adafe.zip | |
iomap: don't mark the inode dirty in iomap_write_end
Marking the inode dirty for each page copied into the page cache can be
very inefficient for file systems that use the VFS dirty inode tracking,
and is completely pointless for those that don't use the VFS dirty inode
tracking. So instead, only set an iomap flag when changing the in-core
inode size, and open code the rest of __generic_write_end.
Partially based on code from Christoph Hellwig.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'include/linux/iomap.h')
| -rw-r--r-- | include/linux/iomap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/iomap.h b/include/linux/iomap.h index 2103b94cb1bf..1df9ea187a9a 100644 --- a/include/linux/iomap.h +++ b/include/linux/iomap.h @@ -35,6 +35,7 @@ struct vm_fault; #define IOMAP_F_NEW 0x01 /* blocks have been newly allocated */ #define IOMAP_F_DIRTY 0x02 /* uncommitted metadata */ #define IOMAP_F_BUFFER_HEAD 0x04 /* file system requires buffer heads */ +#define IOMAP_F_SIZE_CHANGED 0x08 /* file size has changed */ /* * Flags that only need to be reported for IOMAP_REPORT requests: |