git: 8b95f9fe925e - stable/12 - msdosfs: correct handling of vnode pager size on file extension error

[Ed Maste]

The branch stable/12 has been updated by emaste:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=8b95f9fe925e844e5e763e50b592c4dddd113310

commit 8b95f9fe925e844e5e763e50b592c4dddd113310
Author:     Konstantin Belousov <k...@freebsd.org>
AuthorDate: 2023-02-10 04:58:43 +0000
Commit:     Ed Maste <ema...@freebsd.org>
CommitDate: 2023-09-11 18:04:29 +0000

    msdosfs: correct handling of vnode pager size on file extension error
    
    (cherry picked from commit e59180ea09a1d1d1463f2a269e94efa0f0b677c5)
    (cherry picked from commit 64152225022bea784ca1948a67e7c040a8bb040a)
---
 sys/fs/msdosfs/msdosfs_denode.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sys/fs/msdosfs/msdosfs_denode.c b/sys/fs/msdosfs/msdosfs_denode.c
index db9e0712d2b1..beb615ec7a34 100644
--- a/sys/fs/msdosfs/msdosfs_denode.c
+++ b/sys/fs/msdosfs/msdosfs_denode.c
@@ -365,10 +365,8 @@ detrunc(struct denode *dep, u_long length, int flags, 
struct ucred *cred)
                return (EINVAL);
        }
 
-       if (dep->de_FileSize < length) {
-               vnode_pager_setsize(DETOV(dep), length);
+       if (dep->de_FileSize < length)
                return deextend(dep, length, cred);
-       }
 
        /*
         * If the desired length is 0 then remember the starting cluster of
@@ -509,6 +507,7 @@ deextend(struct denode *dep, u_long length, struct ucred 
*cred)
                        return (error);
                }
        }
+       vnode_pager_setsize(DETOV(dep), length);
        dep->de_FileSize = length;
        dep->de_flag |= DE_UPDATE | DE_MODIFIED;
        return (deupdat(dep, !DOINGASYNC(DETOV(dep))));