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authorMuchun Song <songmuchun@bytedance.com>2022-01-22 09:14:20 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-01-22 09:33:37 +0300
commit6dfbbae14a7b961f41d80a106e1ab60e86d061c5 (patch)
tree487d7ecefb4ad5b67b697fd7f99567a795c23455 /sound
parenta37265995c867a4e413761d846cef0445b08d6d5 (diff)
downloadlinux-6dfbbae14a7b961f41d80a106e1ab60e86d061c5.tar.xz
fs: proc: store PDE()->data into inode->i_private
PDE_DATA(inode) is introduced to get user private data and hide the layout of struct proc_dir_entry. The inode->i_private is used to do the same thing as well. Save a copy of user private data to inode-> i_private when proc inode is allocated. This means the user also can get their private data by inode->i_private. Introduce pde_data() to wrap inode->i_private so that we can remove PDE_DATA() from fs/proc/generic.c and make PTE_DATE() as a wrapper of pde_data(). It will be easier if we decide to remove PDE_DATE() in the future. Link: https://lkml.kernel.org/r/20211124081956.87711-1-songmuchun@bytedance.com Signed-off-by: Muchun Song <songmuchun@bytedance.com> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Alexey Gladkov <gladkov.alexey@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'sound')
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