diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-06-07 21:42:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-08 11:05:58 -0700 |
| commit | 48304f7994d74ef8fddde3ff27ce41aa61453d39 (patch) | |
| tree | 6cc168311b6600036c1f9595361018d644c4e05b /fs/exec.c | |
| parent | a1e81f9654eef650d3ee35c94a8cab00b5cd379c (diff) | |
| download | lwn-48304f7994d74ef8fddde3ff27ce41aa61453d39.tar.gz lwn-48304f7994d74ef8fddde3ff27ce41aa61453d39.zip | |
exec: only build read_code when needed
Only build read_code when binary formats that use it are built into the
kernel.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Link: http://lkml.kernel.org/r/20200515143646.3857579-26-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/exec.c')
| -rw-r--r-- | fs/exec.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c index 93ff1c4c7ebb..88260ec0ac34 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1053,6 +1053,8 @@ out: } EXPORT_SYMBOL_GPL(kernel_read_file_from_fd); +#if defined(CONFIG_HAVE_AOUT) || defined(CONFIG_BINFMT_FLAT) || \ + defined(CONFIG_BINFMT_ELF_FDPIC) ssize_t read_code(struct file *file, unsigned long addr, loff_t pos, size_t len) { ssize_t res = vfs_read(file, (void __user *)addr, len, &pos); @@ -1061,6 +1063,7 @@ ssize_t read_code(struct file *file, unsigned long addr, loff_t pos, size_t len) return res; } EXPORT_SYMBOL(read_code); +#endif /* * Maps the mm_struct mm into the current task struct. |