diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2019-05-21 17:09:59 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-06-28 10:57:52 -0700 |
| commit | c0a367a8e7f0b5f4ec830f5317da86e53b40e6e8 (patch) | |
| tree | 850b306c58878d7b5617bed013ffc6ba13bb1ea5 /fs/inode.c | |
| parent | 640b5d6fdb5f79b4792ea0ae868ae0ba52aa73fb (diff) | |
vfs: teach vfs_ioc_fssetxattr_check to check extent size hints
Move the extent size hint checks that aren't xfs-specific to the vfs.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/inode.c')
| -rw-r--r-- | fs/inode.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/inode.c b/fs/inode.c index c4f8fb16f633..670d5408d022 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -2247,6 +2247,24 @@ int vfs_ioc_fssetxattr_check(struct inode *inode, const struct fsxattr *old_fa, return -EINVAL; } + /* Check extent size hints. */ + if ((fa->fsx_xflags & FS_XFLAG_EXTSIZE) && !S_ISREG(inode->i_mode)) + return -EINVAL; + + if ((fa->fsx_xflags & FS_XFLAG_EXTSZINHERIT) && + !S_ISDIR(inode->i_mode)) + return -EINVAL; + + if ((fa->fsx_xflags & FS_XFLAG_COWEXTSIZE) && + !S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode)) + return -EINVAL; + + /* Extent size hints of zero turn off the flags. */ + if (fa->fsx_extsize == 0) + fa->fsx_xflags &= ~(FS_XFLAG_EXTSIZE | FS_XFLAG_EXTSZINHERIT); + if (fa->fsx_cowextsize == 0) + fa->fsx_xflags &= ~FS_XFLAG_COWEXTSIZE; + return 0; } EXPORT_SYMBOL(vfs_ioc_fssetxattr_check); |