[RFC 07/18] limits: track RLIMIT_FSIZE actual max
From: Topi Miettinen <hidden>
Date: 2016-06-13 19:44:14
Also in:
linux-fsdevel, lkml
Subsystem:
filesystems (vfs and infrastructure), memory management, page cache, the rest · Maintainers:
Alexander Viro, Christian Brauner, Andrew Morton, Matthew Wilcox, Jan Kara, Linus Torvalds
Track maximum file size, presented in /proc/self/limits. Signed-off-by: Topi Miettinen <redacted> --- fs/attr.c | 2 ++ mm/filemap.c | 1 + 2 files changed, 3 insertions(+)
diff --git a/fs/attr.c b/fs/attr.c
index 25b24d0..1b620f7 100644
--- a/fs/attr.c
+++ b/fs/attr.c@@ -116,6 +116,8 @@ int inode_newsize_ok(const struct inode *inode, loff_t offset) return -ETXTBSY; } + bump_rlimit(RLIMIT_FSIZE, offset); + return 0; out_sig: send_sig(SIGXFSZ, current, 0);
diff --git a/mm/filemap.c b/mm/filemap.c
index 00ae878..1fa9864 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c@@ -2447,6 +2447,7 @@ inline ssize_t generic_write_checks(struct kiocb *iocb, struct iov_iter *from) send_sig(SIGXFSZ, current, 0); return -EFBIG; } + bump_rlimit(RLIMIT_FSIZE, iocb->ki_pos); iov_iter_truncate(from, limit - (unsigned long)pos); }
--
2.8.1
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