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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-03-08 10:11:33 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-03-08 10:11:33 -0300 |
| commit | 009ef05f98129aa91c62c3baab859ba593a15bb2 (patch) | |
| tree | f3414f08d636a597545b1e4f443b373b9d6d8f4b /fs/remap_range.c | |
| parent | 2777b81b379df772defd654bc4d3fa82dca17a4b (diff) | |
| parent | 144c79ef33536b4ecb4951e07dbc1f2b7fa99d32 (diff) | |
| download | lwn-009ef05f98129aa91c62c3baab859ba593a15bb2.tar.gz lwn-009ef05f98129aa91c62c3baab859ba593a15bb2.zip | |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up the fixes sent for v5.12 and continue development based on
v5.12-rc2, i.e. without the swap on file bug.
This also gets a slightly newer and better tools/perf/arch/arm/util/cs-etm.c
patch version, using the BIT() macro, that had already been slated to
v5.13 but ended up going to v5.12-rc1 on an older version.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'fs/remap_range.c')
| -rw-r--r-- | fs/remap_range.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/remap_range.c b/fs/remap_range.c index 77dba3a49e65..e4a5fdd7ad7b 100644 --- a/fs/remap_range.c +++ b/fs/remap_range.c @@ -432,13 +432,16 @@ EXPORT_SYMBOL(vfs_clone_file_range); /* Check whether we are allowed to dedupe the destination file */ static bool allow_file_dedupe(struct file *file) { + struct user_namespace *mnt_userns = file_mnt_user_ns(file); + struct inode *inode = file_inode(file); + if (capable(CAP_SYS_ADMIN)) return true; if (file->f_mode & FMODE_WRITE) return true; - if (uid_eq(current_fsuid(), file_inode(file)->i_uid)) + if (uid_eq(current_fsuid(), i_uid_into_mnt(mnt_userns, inode))) return true; - if (!inode_permission(file_inode(file), MAY_WRITE)) + if (!inode_permission(mnt_userns, inode, MAY_WRITE)) return true; return false; } |