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| author | Joern Engel <joern@logfs.org> | 2010-05-07 19:38:40 +0200 |
|---|---|---|
| committer | Joern Engel <joern@logfs.org> | 2010-05-07 19:38:40 +0200 |
| commit | 6f485b41875dbf5160c1990322469c1f65f77b28 (patch) | |
| tree | 9912cee9517b57c2cb3c0318861f2a9eeb4139b2 /fs/logfs/logfs.h | |
| parent | ccf31c10f125ab5233c8517f91d4b3bd0bd60936 (diff) | |
| download | linux-6f485b41875dbf5160c1990322469c1f65f77b28.tar.gz linux-6f485b41875dbf5160c1990322469c1f65f77b28.tar.bz2 linux-6f485b41875dbf5160c1990322469c1f65f77b28.zip | |
logfs: handle powerfail on NAND flash
The write buffer may not have been written and may no longer be written
due to an interrupted write in the affected page.
Signed-off-by: Joern Engel <joern@logfs.org>
Diffstat (limited to 'fs/logfs/logfs.h')
| -rw-r--r-- | fs/logfs/logfs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h index 26a9458e6b13..93b55f337245 100644 --- a/fs/logfs/logfs.h +++ b/fs/logfs/logfs.h @@ -144,6 +144,7 @@ struct logfs_area_ops { * @erase: erase one segment * @read: read from the device * @erase: erase part of the device + * @can_write_buf: decide whether wbuf can be written to ofs */ struct logfs_device_ops { struct page *(*find_first_sb)(struct super_block *sb, u64 *ofs); @@ -153,6 +154,7 @@ struct logfs_device_ops { void (*writeseg)(struct super_block *sb, u64 ofs, size_t len); int (*erase)(struct super_block *sb, loff_t ofs, size_t len, int ensure_write); + int (*can_write_buf)(struct super_block *sb, u64 ofs); void (*sync)(struct super_block *sb); void (*put_device)(struct super_block *sb); }; |