diff options
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/api-summary.rst | 3 | ||||
| -rw-r--r-- | Documentation/filesystems/debugfs.rst | 2 | ||||
| -rw-r--r-- | Documentation/filesystems/ext4/journal.rst | 6 | ||||
| -rw-r--r-- | Documentation/filesystems/ext4/super.rst | 7 | ||||
| -rw-r--r-- | Documentation/filesystems/journalling.rst | 6 |
5 files changed, 16 insertions, 8 deletions
diff --git a/Documentation/filesystems/api-summary.rst b/Documentation/filesystems/api-summary.rst index bbb0c1c0e5cf..a94f17d9b836 100644 --- a/Documentation/filesystems/api-summary.rst +++ b/Documentation/filesystems/api-summary.rst @@ -86,9 +86,6 @@ Other Functions .. kernel-doc:: fs/dax.c :export: -.. kernel-doc:: fs/direct-io.c - :export: - .. kernel-doc:: fs/libfs.c :export: diff --git a/Documentation/filesystems/debugfs.rst b/Documentation/filesystems/debugfs.rst index 728ab57a611a..0f2292e367e6 100644 --- a/Documentation/filesystems/debugfs.rst +++ b/Documentation/filesystems/debugfs.rst @@ -199,7 +199,7 @@ of its elements. Note: Once array is created its size can not be changed. There is a helper function to create device related seq_file:: - struct dentry *debugfs_create_devm_seqfile(struct device *dev, + void debugfs_create_devm_seqfile(struct device *dev, const char *name, struct dentry *parent, int (*read_fn)(struct seq_file *s, diff --git a/Documentation/filesystems/ext4/journal.rst b/Documentation/filesystems/ext4/journal.rst index 805a1e9ea3a5..849d5b119eb8 100644 --- a/Documentation/filesystems/ext4/journal.rst +++ b/Documentation/filesystems/ext4/journal.rst @@ -256,6 +256,10 @@ which is 1024 bytes long: - s\_padding2 - * - 0x54 + - \_\_be32 + - s\_num\_fc\_blocks + - Number of fast commit blocks in the journal. + * - 0x58 - \_\_u32 - s\_padding[42] - @@ -310,6 +314,8 @@ The journal incompat features are any combination of the following: - This journal uses v3 of the checksum on-disk format. This is the same as v2, but the journal block tag size is fixed regardless of the size of block numbers. (JBD2\_FEATURE\_INCOMPAT\_CSUM\_V3) + * - 0x20 + - Journal has fast commit blocks. (JBD2\_FEATURE\_INCOMPAT\_FAST\_COMMIT) .. _jbd2_checksum_type: diff --git a/Documentation/filesystems/ext4/super.rst b/Documentation/filesystems/ext4/super.rst index 93e55d7c1d40..2eb1ab20498d 100644 --- a/Documentation/filesystems/ext4/super.rst +++ b/Documentation/filesystems/ext4/super.rst @@ -596,6 +596,13 @@ following: - Sparse Super Block, v2. If this flag is set, the SB field s\_backup\_bgs points to the two block groups that contain backup superblocks (COMPAT\_SPARSE\_SUPER2). + * - 0x400 + - Fast commits supported. Although fast commits blocks are + backward incompatible, fast commit blocks are not always + present in the journal. If fast commit blocks are present in + the journal, JBD2 incompat feature + (JBD2\_FEATURE\_INCOMPAT\_FAST\_COMMIT) gets + set (COMPAT\_FAST\_COMMIT). .. _super_incompat: diff --git a/Documentation/filesystems/journalling.rst b/Documentation/filesystems/journalling.rst index 5a5f70b4063e..e18f90ffc6fd 100644 --- a/Documentation/filesystems/journalling.rst +++ b/Documentation/filesystems/journalling.rst @@ -136,10 +136,8 @@ Fast commits ~~~~~~~~~~~~ JBD2 to also allows you to perform file-system specific delta commits known as -fast commits. In order to use fast commits, you first need to call -:c:func:`jbd2_fc_init` and tell how many blocks at the end of journal -area should be reserved for fast commits. Along with that, you will also need -to set following callbacks that perform correspodning work: +fast commits. In order to use fast commits, you will need to set following +callbacks that perform correspodning work: `journal->j_fc_cleanup_cb`: Cleanup function called after every full commit and fast commit. |