[Patch v5 6/6] switch compat readv/preadv/writev/pwritev from fget to fget_light
From: <hidden>
Date: 2008-12-19 15:58:25
Also in:
linux-arch
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2008-12-19 · [Patch v5 6/6] switch compat readv/preadv/writev/pwritev from fget to fget_light · <hidden>
- 2008-12-19 · [Patch v5 6/6] switch compat readv/preadv/writev/pwritev from fget to fget_light · <hidden>
From: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> --- fs/compat.c | 20 ++++++++++++-------- 1 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/fs/compat.c b/fs/compat.c
index 4e1fa33..8d48705 100644
--- a/fs/compat.c
+++ b/fs/compat.c@@ -1192,13 +1192,14 @@ asmlinkage ssize_t compat_sys_readv(unsigned long fd, const struct compat_iovec __user *vec, unsigned long vlen) { struct file *file; + int fput_needed; ssize_t ret; - file = fget(fd); + file = fget_light(fd, &fput_needed); if (!file) return -EBADF; ret = compat_readv(file, vec, vlen, &file->f_pos); - fput(file); + fput_light(file, fput_needed); return ret; }
@@ -1208,15 +1209,16 @@ compat_sys_preadv(unsigned long fd, const struct compat_iovec __user *vec, { loff_t pos = ((loff_t)pos_high << 32) | pos_low; struct file *file; + int fput_needed; ssize_t ret; if (pos < 0) return -EINVAL; - file = fget(fd); + file = fget_light(fd, &fput_needed); if (!file) return -EBADF; ret = compat_readv(file, vec, vlen, &pos); - fput(file); + fput_light(file, fput_needed); return ret; }
@@ -1245,13 +1247,14 @@ asmlinkage ssize_t compat_sys_writev(unsigned long fd, const struct compat_iovec __user *vec, unsigned long vlen) { struct file *file; + int fput_needed; ssize_t ret; - file = fget(fd); + file = fget_light(fd, &fput_needed); if (!file) return -EBADF; ret = compat_writev(file, vec, vlen, &file->f_pos); - fput(file); + fput_light(file, fput_needed); return ret; }
@@ -1261,15 +1264,16 @@ compat_sys_pwritev(unsigned long fd, const struct compat_iovec __user *vec, { loff_t pos = ((loff_t)pos_high << 32) | pos_low; struct file *file; + int fput_needed; ssize_t ret; if (pos < 0) return -EINVAL; - file = fget(fd); + file = fget_light(fd, &fput_needed); if (!file) return -EBADF; ret = compat_writev(file, vec, vlen, &pos); - fput(file); + fput_light(file, fput_needed); return ret; }
--
1.5.6.5