2012/12/3, OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>: > Namjae Jeon <linkinjeon@xxxxxxxxx> writes: > >> From: Namjae Jeon <namjae.jeon@xxxxxxxxxxx> >> >> update nfs option in filesystem/vfat.txt >> >> Signed-off-by: Namjae Jeon <namjae.jeon@xxxxxxxxxxx> >> Signed-off-by: Ravishankar N <ravi.n1@xxxxxxxxxxx> >> Signed-off-by: Amit Sahrawat <a.sahrawat@xxxxxxxxxxx> >> --- >> Documentation/filesystems/vfat.txt | 23 ++++++++++++++++++----- >> 1 file changed, 18 insertions(+), 5 deletions(-) >> >> diff --git a/Documentation/filesystems/vfat.txt >> b/Documentation/filesystems/vfat.txt >> index d230dd9..f663c70 100644 >> --- a/Documentation/filesystems/vfat.txt >> +++ b/Documentation/filesystems/vfat.txt >> @@ -150,13 +150,26 @@ 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. >> - >> - Enable this only if you want to export the FAT filesystem >> +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 > > Please add whitespace after ":" and ".". And please care 80 columns. Okay, I will fix it. Thanks. > -- > OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx> > -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
