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| author | Alex Tomas <alex@clusterfs.com> | 2008-07-11 19:27:31 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-07-11 19:27:31 -0400 |
| commit | 64769240bd07f446f83660bb143bb609d8ab4910 (patch) | |
| tree | db8bd8dda988adab6b4f6087a9b59ce504612009 /fs/ext4/super.c | |
| parent | 29a814d2ee0e43c2980f33f91c1311ec06c0aa35 (diff) | |
| download | linux-64769240bd07f446f83660bb143bb609d8ab4910.tar.gz linux-64769240bd07f446f83660bb143bb609d8ab4910.tar.bz2 linux-64769240bd07f446f83660bb143bb609d8ab4910.zip | |
ext4: Add delayed allocation support in data=writeback mode
Updated with fixes from Mingming Cao <cmm@us.ibm.com> to unlock and
release the page from page cache if the delalloc write_begin failed, and
properly handle preallocated blocks. Also added a fix to clear
buffer_delay in block_write_full_page() after allocating a delayed
buffer.
Updated with fixes from Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
to update i_disksize properly and to add bmap support for delayed
allocation.
Updated with a fix from Valerie Clement <valerie.clement@bull.net> to
avoid filesystem corruption when the filesystem is mounted with the
delalloc option and blocksize < pagesize.
Signed-off-by: Alex Tomas <alex@clusterfs.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Diffstat (limited to 'fs/ext4/super.c')
| -rw-r--r-- | fs/ext4/super.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 629d0fa27e3a..de9d3d0eb203 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -898,7 +898,7 @@ enum { Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota, Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota, Opt_grpquota, Opt_extents, Opt_noextents, Opt_i_version, - Opt_mballoc, Opt_nomballoc, Opt_stripe, + Opt_mballoc, Opt_nomballoc, Opt_stripe, Opt_delalloc, }; static match_table_t tokens = { @@ -957,6 +957,7 @@ static match_table_t tokens = { {Opt_nomballoc, "nomballoc"}, {Opt_stripe, "stripe=%u"}, {Opt_resize, "resize"}, + {Opt_delalloc, "delalloc"}, {Opt_err, NULL}, }; @@ -1335,6 +1336,9 @@ set_qf_format: return 0; sbi->s_stripe = option; break; + case Opt_delalloc: + set_opt(sbi->s_mount_opt, DELALLOC); + break; default: printk (KERN_ERR "EXT4-fs: Unrecognized mount option \"%s\" " |