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* [PATCH] f2fs: fix wrong check on F2FS_IOC_FSSETXATTR
@ 2020-03-05 23:48 ` Jaegeuk Kim
  0 siblings, 0 replies; 10+ messages in thread
From: Jaegeuk Kim @ 2020-03-05 23:48 UTC (permalink / raw)
  To: linux-kernel, linux-f2fs-devel; +Cc: Jaegeuk Kim, Daniel Rosenberg

This fixes the incorrect failure when enabling project quota on casefold-enabled
file.

Cc: Daniel Rosenberg <drosen@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/file.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index fb070816a8a5..8a41afac0346 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1789,12 +1789,15 @@ static int f2fs_file_flush(struct file *file, fl_owner_t id)
 static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
 {
 	struct f2fs_inode_info *fi = F2FS_I(inode);
+	u32 masked_flags = fi->i_flags & mask;
+
+	f2fs_bug_on(F2FS_I_SB(inode), (iflags & ~mask));
 
 	/* Is it quota file? Do not allow user to mess with it */
 	if (IS_NOQUOTA(inode))
 		return -EPERM;
 
-	if ((iflags ^ fi->i_flags) & F2FS_CASEFOLD_FL) {
+	if ((iflags ^ masked_flags) & F2FS_CASEFOLD_FL) {
 		if (!f2fs_sb_has_casefold(F2FS_I_SB(inode)))
 			return -EOPNOTSUPP;
 		if (!f2fs_empty_dir(inode))
@@ -1808,9 +1811,9 @@ static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
 			return -EINVAL;
 	}
 
-	if ((iflags ^ fi->i_flags) & F2FS_COMPR_FL) {
+	if ((iflags ^ masked_flags) & F2FS_COMPR_FL) {
 		if (S_ISREG(inode->i_mode) &&
-			(fi->i_flags & F2FS_COMPR_FL || i_size_read(inode) ||
+			(masked_flags & F2FS_COMPR_FL || i_size_read(inode) ||
 						F2FS_HAS_BLOCKS(inode)))
 			return -EINVAL;
 		if (iflags & F2FS_NOCOMP_FL)
@@ -1827,16 +1830,16 @@ static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
 			set_compress_context(inode);
 		}
 	}
-	if ((iflags ^ fi->i_flags) & F2FS_NOCOMP_FL) {
-		if (fi->i_flags & F2FS_COMPR_FL)
+	if ((iflags ^ masked_flags) & F2FS_NOCOMP_FL) {
+		if (masked_flags & F2FS_COMPR_FL)
 			return -EINVAL;
 	}
 
 	fi->i_flags = iflags | (fi->i_flags & ~mask);
-	f2fs_bug_on(F2FS_I_SB(inode), (fi->i_flags & F2FS_COMPR_FL) &&
-					(fi->i_flags & F2FS_NOCOMP_FL));
+	f2fs_bug_on(F2FS_I_SB(inode), (masked_flags & F2FS_COMPR_FL) &&
+					(masked_flags & F2FS_NOCOMP_FL));
 
-	if (fi->i_flags & F2FS_PROJINHERIT_FL)
+	if (masked_flags & F2FS_PROJINHERIT_FL)
 		set_inode_flag(inode, FI_PROJ_INHERIT);
 	else
 		clear_inode_flag(inode, FI_PROJ_INHERIT);
-- 
2.25.1.481.gfbce0eb801-goog


^ permalink raw reply related	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2020-03-09  8:25 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-03-05 23:48 [PATCH] f2fs: fix wrong check on F2FS_IOC_FSSETXATTR Jaegeuk Kim
2020-03-05 23:48 ` [f2fs-dev] " Jaegeuk Kim
2020-03-06  1:39 ` Chao Yu
2020-03-06  1:39   ` Chao Yu
2020-03-06  1:42 ` Daniel Rosenberg
2020-03-06  1:42   ` [f2fs-dev] " Daniel Rosenberg via Linux-f2fs-devel
2020-03-07  0:24 ` [PATCH v2] " Jaegeuk Kim
2020-03-07  0:24   ` [f2fs-dev] " Jaegeuk Kim
2020-03-09  8:24   ` Chao Yu
2020-03-09  8:24     ` Chao Yu

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