xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[PATCH] quota: ext3: Improve quota credit estimates

Browse Source 
Use improved credits estimates for quota operations.  Also reserve a space
for a quota operation in a transaction only if filesystem was mounted with
some quota options.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jan Kara
2005-06-23 22:01:04 -07:00
committed by Linus Torvalds
parent 4e5117ba0a
commit 1f54587bea
7 changed files with 60 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
fs/ext3/super.c
View File

@@ -589,7 +589,7 @@ enum {
Opt_commit, Opt_journal_update, Opt_journal_inum,
Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0,
Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
Opt_ignore, Opt_barrier, Opt_err, Opt_resize,
};
@@ -634,10 +634,10 @@ static match_table_t tokens = {
{Opt_grpjquota, "grpjquota=%s"},
{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
{Opt_ignore, "grpquota"},
{Opt_ignore, "noquota"},
{Opt_ignore, "quota"},
{Opt_ignore, "usrquota"},
{Opt_quota, "grpquota"},
{Opt_noquota, "noquota"},
{Opt_quota, "quota"},
{Opt_quota, "usrquota"},
{Opt_barrier, "barrier=%u"},
{Opt_err, NULL},
{Opt_resize, "resize"},
@@ -876,6 +876,7 @@ set_qf_name:
sbi->s_qf_names[qtype] = NULL;
return 0;
}
set_opt(sbi->s_mount_opt, QUOTA);
break;
case Opt_offusrjquota:
qtype = USRQUOTA;
@@ -898,6 +899,17 @@ clear_qf_name:
case Opt_jqfmt_vfsv0:
sbi->s_jquota_fmt = QFMT_VFS_V0;
break;
case Opt_quota:
set_opt(sbi->s_mount_opt, QUOTA);
break;
case Opt_noquota:
if (sb_any_quota_enabled(sb)) {
printk(KERN_ERR "EXT3-fs: Cannot change quota "
"options when quota turned on.\n");
return 0;
}
clear_opt(sbi->s_mount_opt, QUOTA);
break;
#else
case Opt_usrjquota:
case Opt_grpjquota:
@@ -909,6 +921,9 @@ clear_qf_name:
"EXT3-fs: journalled quota options not "
"supported.\n");
break;
case Opt_quota:
case Opt_noquota:
break;
#endif
case Opt_abort:
set_opt(sbi->s_mount_opt, ABORT);
@@ -2238,7 +2253,7 @@ static int ext3_dquot_initialize(struct inode *inode, int type)
int ret, err;
/* We may create quota structure so we need to reserve enough blocks */
handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS);
handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS(inode->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_initialize(inode, type);
@@ -2254,7 +2269,7 @@ static int ext3_dquot_drop(struct inode *inode)
int ret, err;
/* We may delete quota structure so we need to reserve enough blocks */
handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS);
handle = ext3_journal_start(inode, 2*EXT3_QUOTA_DEL_BLOCKS(inode->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_drop(inode);
@@ -2272,7 +2287,7 @@ static int ext3_write_dquot(struct dquot *dquot)
inode = dquot_to_inode(dquot);
handle = ext3_journal_start(inode,
EXT3_QUOTA_TRANS_BLOCKS);
EXT3_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_commit(dquot);
@@ -2288,7 +2303,7 @@ static int ext3_acquire_dquot(struct dquot *dquot)
handle_t *handle;
handle = ext3_journal_start(dquot_to_inode(dquot),
EXT3_QUOTA_INIT_BLOCKS);
EXT3_QUOTA_INIT_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_acquire(dquot);
@@ -2304,7 +2319,7 @@ static int ext3_release_dquot(struct dquot *dquot)
handle_t *handle;
handle = ext3_journal_start(dquot_to_inode(dquot),
EXT3_QUOTA_INIT_BLOCKS);
EXT3_QUOTA_DEL_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_release(dquot);
@@ -2361,6 +2376,8 @@ static int ext3_quota_on(struct super_block *sb, int type, int format_id,
int err;
struct nameidata nd;
if (!test_opt(sb, QUOTA))
return -EINVAL;
/* Not journalling quota? */
if (!EXT3_SB(sb)->s_qf_names[USRQUOTA] &&
!EXT3_SB(sb)->s_qf_names[GRPQUOTA])