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| author | Jan Kara <jack@suse.cz> | 2015-05-21 16:05:53 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-06-23 18:01:08 -0400 |
| commit | 5fa8e0a1c6a762857ae67d1628c58b9a02362003 (patch) | |
| tree | 53072ae36f38d4b3c1c56defff4b98acb274c077 /fs/inode.c | |
| parent | 2426f3910069ed47c0cc58559a6d088af7920201 (diff) | |
| download | linux-stable-5fa8e0a1c6a762857ae67d1628c58b9a02362003.tar.gz linux-stable-5fa8e0a1c6a762857ae67d1628c58b9a02362003.tar.bz2 linux-stable-5fa8e0a1c6a762857ae67d1628c58b9a02362003.zip | |
fs: Rename file_remove_suid() to file_remove_privs()
file_remove_suid() is a misnomer since it removes also file capabilities
stored in xattrs and sets S_NOSEC flag. Also should_remove_suid() tells
something else than whether file_remove_suid() call is necessary which
leads to bugs.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/inode.c')
| -rw-r--r-- | fs/inode.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/fs/inode.c b/fs/inode.c index 07f4cb5eab4b..849210c155dc 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -1685,7 +1685,11 @@ static int __remove_suid(struct dentry *dentry, int kill) return notify_change(dentry, &newattrs, NULL); } -int file_remove_suid(struct file *file) +/* + * Remove special file priviledges (suid, capabilities) when file is written + * to or truncated. + */ +int file_remove_privs(struct file *file) { struct dentry *dentry = file->f_path.dentry; struct inode *inode = d_inode(dentry); @@ -1711,7 +1715,7 @@ int file_remove_suid(struct file *file) return error; } -EXPORT_SYMBOL(file_remove_suid); +EXPORT_SYMBOL(file_remove_privs); /** * file_update_time - update mtime and ctime time @@ -1966,9 +1970,8 @@ EXPORT_SYMBOL(inode_dio_wait); * inode is being instantiated). The reason for the cmpxchg() loop * --- which wouldn't be necessary if all code paths which modify * i_flags actually followed this rule, is that there is at least one - * code path which doesn't today --- for example, - * __generic_file_aio_write() calls file_remove_suid() without holding - * i_mutex --- so we use cmpxchg() out of an abundance of caution. + * code path which doesn't today so we use cmpxchg() out of an abundance + * of caution. * * In the long run, i_mutex is overkill, and we should probably look * at using the i_lock spinlock to protect i_flags, and then make sure |