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authorMicah Cowan <micah@cowan.name>2007-07-15 23:40:08 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 09:05:43 -0700
commit17973f5af741f1758ed57c5115ca394c22bee159 (patch)
tree0fd340e46f1fbae4ab7aa8d06b26af208a3e83f4 /mm/filemap.c
parent1e3e8d91fee56e1ab598b265466dc38033f1b915 (diff)
Only send SIGXFSZ when exceeding rlimits.
Some users have been having problems with utilities like cp or dd dumping core when they try to copy a file that's too large for the destination filesystem (typically, > 4gb). Apparently, some defunct standards required SIGXFSZ to be sent in such circumstances, but SUS only requires/allows it for when a written file exceeds the process's resource limits. I'd like to limit SIGXFSZs to the bare minimum required by SUS. Patch sent per http://lkml.org/lkml/2007/4/10/302 Signed-off-by: Micah Cowan <micahcowan@ubuntu.com> Acked-by: Alan Cox <alan@redhat.com> Cc: <reiserfs-dev@namesys.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/filemap.c')
-rw-r--r--mm/filemap.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index adbac104f34c..100b99c2d504 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1967,7 +1967,6 @@ inline int generic_write_checks(struct file *file, loff_t *pos, size_t *count, i
if (unlikely(*pos + *count > MAX_NON_LFS &&
!(file->f_flags & O_LARGEFILE))) {
if (*pos >= MAX_NON_LFS) {
- send_sig(SIGXFSZ, current, 0);
return -EFBIG;
}
if (*count > MAX_NON_LFS - (unsigned long)*pos) {
@@ -1985,7 +1984,6 @@ inline int generic_write_checks(struct file *file, loff_t *pos, size_t *count, i
if (likely(!isblk)) {
if (unlikely(*pos >= inode->i_sb->s_maxbytes)) {
if (*count || *pos > inode->i_sb->s_maxbytes) {
- send_sig(SIGXFSZ, current, 0);
return -EFBIG;
}
/* zero-length writes at ->s_maxbytes are OK */