diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2013-05-05 08:24:42 +0200 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2013-05-05 08:27:03 +0200 |
commit | f99e44a7f3352d7131c7526207f153f13ec5acd4 (patch) | |
tree | 0f448b21128c478053ee7f7765b865954c4eebe8 /Documentation/filesystems/vfat.txt | |
parent | fd29f424d458118f02e89596505c68a63dcb3007 (diff) | |
parent | ce857229e0c3adc211944a13a5579ef84fd7b4af (diff) |
Merge branch 'linus' into core/urgent
Update with Linus tree so fixes for the same can be applied.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'Documentation/filesystems/vfat.txt')
-rw-r--r-- | Documentation/filesystems/vfat.txt | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt index d230dd9c99b..4a93e98b290 100644 --- a/Documentation/filesystems/vfat.txt +++ b/Documentation/filesystems/vfat.txt @@ -150,12 +150,28 @@ discard -- If set, issues discard/TRIM commands to the block device when blocks are freed. This is useful for SSD devices and sparse/thinly-provisoned LUNs. -nfs -- This option maintains an index (cache) of directory - inodes by i_logstart which is used by the nfs-related code to - improve look-ups. +nfs=stale_rw|nostale_ro + Enable this only if you want to export the FAT filesystem + over NFS. + + stale_rw: This option maintains an index (cache) of directory + inodes by i_logstart which is used by the nfs-related code to + improve look-ups. Full file operations (read/write) over NFS is + supported but with cache eviction at NFS server, this could + result in ESTALE issues. + + nostale_ro: This option bases the inode number and filehandle + on the on-disk location of a file in the MS-DOS directory entry. + This ensures that ESTALE will not be returned after a file is + evicted from the inode cache. However, it means that operations + such as rename, create and unlink could cause filehandles that + previously pointed at one file to point at a different file, + potentially causing data corruption. For this reason, this + option also mounts the filesystem readonly. + + To maintain backward compatibility, '-o nfs' is also accepted, + defaulting to stale_rw - Enable this only if you want to export the FAT filesystem - over NFS <bool>: 0,1,yes,no,true,false |