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由 Johannes Thumshirn 提交于
Up to commit 32955c54 ("btrfs: switch to discard_new_inode()") the drop_on_err variable in btrfs_mkdir() was used to check whether the inode had to be dropped via iput(). After commit 32955c54 ("btrfs: switch to discard_new_inode()") discard_new_inode() is called when err is set and inode is non NULL. Therefore drop_on_err is not used anymore and thus causes a warning when building with -Wunused-but-set-variable. Reviewed-by: NOmar Sandoval <osandov@fb.com> Reviewed-by: NNikolay Borisov <nborisov@suse.com> Reviewed-by: NQu Wenruo <wqu@suse.com> Signed-off-by: NJohannes Thumshirn <jthumshirn@suse.de> Signed-off-by: NDavid Sterba <dsterba@suse.com>
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