Messages in this thread Patch in this message | | | From | Chao Yu <> | Subject | [PATCH] f2fs: fix to cover f2fs_fiemap with inode_lock | Date | Wed, 10 Jan 2018 14:18:06 +0800 |
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This patch fix to cover f2fs_fiemap with inode_lock in order to make the whole interface avoiding race with mapping change.
Signed-off-by: Chao Yu <yuchao0@huawei.com> --- fs/f2fs/data.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index d6302051a65d..330085d3adfc 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1146,18 +1146,18 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u32 flags = 0; int ret = 0; + inode_lock(inode); + ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC); if (ret) - return ret; + goto out; if (f2fs_has_inline_data(inode)) { ret = f2fs_inline_data_fiemap(inode, fieinfo, start, len); if (ret != -EAGAIN) - return ret; + goto out; } - inode_lock(inode); - if (logical_to_blk(inode, len) == 0) len = blk_to_logical(inode, 1); -- 2.15.0.55.gc2ece9dc4de6
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