2015-07-17 10:07:20

by Chao Yu

[permalink] [raw]
Subject: [PATCH 3/3] f2fs: convert inline data before set atomic/volatile flag

In f2fs_ioc_start_{atomic,volatile}_write, if we failed in converting
inline data, we will report error to user, but still remain atomic/volatile
flag in inode, it will impact further writes for this file. Fix it.

Signed-off-by: Chao Yu <[email protected]>
---
fs/f2fs/file.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 1bb1d6e..ee17472 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1323,6 +1323,7 @@ static int f2fs_ioc_getversion(struct file *filp, unsigned long arg)
static int f2fs_ioc_start_atomic_write(struct file *filp)
{
struct inode *inode = file_inode(filp);
+ int ret;

if (!inode_owner_or_capable(inode))
return -EACCES;
@@ -1332,9 +1333,12 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
if (f2fs_is_atomic_file(inode))
return 0;

- set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;

- return f2fs_convert_inline_inode(inode);
+ set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
+ return 0;
}

static int f2fs_ioc_commit_atomic_write(struct file *filp)
@@ -1364,6 +1368,7 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp)
static int f2fs_ioc_start_volatile_write(struct file *filp)
{
struct inode *inode = file_inode(filp);
+ int ret;

if (!inode_owner_or_capable(inode))
return -EACCES;
@@ -1371,9 +1376,12 @@ static int f2fs_ioc_start_volatile_write(struct file *filp)
if (f2fs_is_volatile_file(inode))
return 0;

- set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;

- return f2fs_convert_inline_inode(inode);
+ set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
+ return 0;
}

static int f2fs_ioc_release_volatile_write(struct file *filp)
--
2.4.2