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ext4: only set project inherit bit for directory 

It doesn't make any sense to have project inherit bits
for regular files, even though this won't cause any
problem, but it is better fix this.

Signed-off-by: Wang Shilong <wshilong@ddn.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
This commit is contained in:
Wang Shilong 2019-06-10 00:13:32 -04:00 committed by Theodore Ts'o
parent 02b016ca7f
commit 7ddf79a103
2 changed files with 4 additions and 1 deletions
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3
fs/ext4/ext4.h
View File

@ -421,7 +421,8 @@ struct flex_groups {
EXT4_PROJINHERIT_FL | EXT4_CASEFOLD_FL)
/* Flags that are appropriate for regular files (all but dir-specific ones). */
#define EXT4_REG_FLMASK (~(EXT4_DIRSYNC_FL | EXT4_TOPDIR_FL | EXT4_CASEFOLD_FL))
#define EXT4_REG_FLMASK (~(EXT4_DIRSYNC_FL | EXT4_TOPDIR_FL | EXT4_CASEFOLD_FL |\
EXT4_PROJINHERIT_FL))
/* Flags that are appropriate for non-directories/regular files. */
#define EXT4_OTHER_FLMASK (EXT4_NODUMP_FL | EXT4_NOATIME_FL)

2
fs/ext4/ioctl.c
View File

@ -779,6 +779,8 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return ext4_ioc_getfsmap(sb, (void __user *)arg);
case EXT4_IOC_GETFLAGS:
flags = ei->i_flags & EXT4_FL_USER_VISIBLE;
if (S_ISREG(inode->i_mode))
flags &= ~EXT4_PROJINHERIT_FL;
return put_user(flags, (int __user *) arg);
case EXT4_IOC_SETFLAGS: {
int err;