diff options
| author | Andreas Gruenbacher <agruenba@redhat.com> | 2017-12-14 17:11:03 +0100 |
|---|---|---|
| committer | Andreas Gruenbacher <agruenba@redhat.com> | 2018-01-18 21:15:58 +0100 |
| commit | 4e56a6411fbce6f859566e17298114c2434391a4 (patch) | |
| tree | 9619a913d0176f33b2dae824439a94e74cf50693 /fs/gfs2/file.c | |
| parent | 10d2cf94c23d48ef1b141084216e7580011e4790 (diff) | |
| download | linux-4e56a6411fbce6f859566e17298114c2434391a4.tar.bz2 | |
gfs2: Implement fallocate(FALLOC_FL_PUNCH_HOLE)
Implement the top-level bits of punching a hole into a file.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'fs/gfs2/file.c')
| -rw-r--r-- | fs/gfs2/file.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 58705ef8643a..bd60dc682676 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -924,7 +924,7 @@ static long gfs2_fallocate(struct file *file, int mode, loff_t offset, loff_t le struct gfs2_holder gh; int ret; - if (mode & ~FALLOC_FL_KEEP_SIZE) + if (mode & ~(FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE)) return -EOPNOTSUPP; /* fallocate is needed by gfs2_grow to reserve space in the rindex */ if (gfs2_is_jdata(ip) && inode != sdp->sd_rindex) @@ -948,13 +948,18 @@ static long gfs2_fallocate(struct file *file, int mode, loff_t offset, loff_t le if (ret) goto out_unlock; - ret = gfs2_rsqa_alloc(ip); - if (ret) - goto out_putw; + if (mode & FALLOC_FL_PUNCH_HOLE) { + ret = __gfs2_punch_hole(file, offset, len); + } else { + ret = gfs2_rsqa_alloc(ip); + if (ret) + goto out_putw; - ret = __gfs2_fallocate(file, mode, offset, len); - if (ret) - gfs2_rs_deltree(&ip->i_res); + ret = __gfs2_fallocate(file, mode, offset, len); + + if (ret) + gfs2_rs_deltree(&ip->i_res); + } out_putw: put_write_access(inode); |