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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-27 12:22:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-27 12:22:12 -0700
commit9cd6681cb1169e815c41af0265165dd1b872f228 (patch)
tree9c2c26d366be9cc5cbb1888da24bf0343813b71d /fs
parent225d3b67482930ff5a9f49ad307deffd97ce04c1 (diff)
parent4c6bb69663b3a3f2db8f488356e96acb5460f25f (diff)
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull quota and isofs fixes from Jan Kara: "Two quota fixes (fallout of the quota locking changes) and an isofs build fix" * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: quota: Fix quota corruption with generic/232 test isofs: fix build regression quota: add missing lock into __dquot_transfer()
Diffstat (limited to 'fs')
-rw-r--r--fs/isofs/inode.c2
-rw-r--r--fs/quota/dquot.c2
-rw-r--r--fs/quota/quota_v2.c4
3 files changed, 8 insertions, 0 deletions
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index db692f554158..447a24d77b89 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -514,9 +514,11 @@ static int isofs_show_options(struct seq_file *m, struct dentry *root)
if (sbi->s_fmode != ISOFS_INVALID_MODE)
seq_printf(m, ",fmode=%o", sbi->s_fmode);
+#ifdef CONFIG_JOLIET
if (sbi->s_nls_iocharset &&
strcmp(sbi->s_nls_iocharset->charset, CONFIG_NLS_DEFAULT) != 0)
seq_printf(m, ",iocharset=%s", sbi->s_nls_iocharset->charset);
+#endif
return 0;
}
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 8381db9db6d9..50b0556a124f 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -1980,7 +1980,9 @@ int __dquot_transfer(struct inode *inode, struct dquot **transfer_to)
ret = dquot_add_space(transfer_to[cnt], cur_space, rsv_space, 0,
&warn_to[cnt]);
if (ret) {
+ spin_lock(&transfer_to[cnt]->dq_dqb_lock);
dquot_decr_inodes(transfer_to[cnt], inode_usage);
+ spin_unlock(&transfer_to[cnt]->dq_dqb_lock);
goto over_quota;
}
}
diff --git a/fs/quota/quota_v2.c b/fs/quota/quota_v2.c
index c0187cda2c1e..a73e5b34db41 100644
--- a/fs/quota/quota_v2.c
+++ b/fs/quota/quota_v2.c
@@ -328,12 +328,16 @@ static int v2_write_dquot(struct dquot *dquot)
if (!dquot->dq_off) {
alloc = true;
down_write(&dqopt->dqio_sem);
+ } else {
+ down_read(&dqopt->dqio_sem);
}
ret = qtree_write_dquot(
sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv,
dquot);
if (alloc)
up_write(&dqopt->dqio_sem);
+ else
+ up_read(&dqopt->dqio_sem);
return ret;
}