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| author |   Sage Weil <sage@inktank.com> | 2013-08-15 11:11:45 -0700 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-08-15 11:11:45 -0700 |
| commit | ee3e542fec6e69bc9fb668698889a37d93950ddf (patch) | |
| tree | e74ee766a4764769ef1d3d45d266b4dea64101d3 /fs/gfs2/rgrp.c | |
| parent | ceph: Remove bogus check in invalidatepage (diff) | |
| parent | Merge branch 'akpm' (patches from Andrew Morton) (diff) | |
| download | linux-dev-ee3e542fec6e69bc9fb668698889a37d93950ddf.tar.xz linux-dev-ee3e542fec6e69bc9fb668698889a37d93950ddf.zip | |
Merge remote-tracking branch 'linus/master' into testing
Diffstat (limited to 'fs/gfs2/rgrp.c')
| -rw-r--r-- | fs/gfs2/rgrp.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index 9809156e3d04..69317435faa7 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -1288,13 +1288,15 @@ int gfs2_fitrim(struct file *filp, void __user *argp) minlen = max_t(u64, r.minlen, q->limits.discard_granularity) >> bs_shift; + if (end <= start || minlen > sdp->sd_max_rg_data) + return -EINVAL; + rgd = gfs2_blk2rgrpd(sdp, start, 0); - rgd_end = gfs2_blk2rgrpd(sdp, end - 1, 0); + rgd_end = gfs2_blk2rgrpd(sdp, end, 0); - if (end <= start || - minlen > sdp->sd_max_rg_data || - start > rgd_end->rd_data0 + rgd_end->rd_data) - return -EINVAL; + if ((gfs2_rgrpd_get_first(sdp) == gfs2_rgrpd_get_next(rgd_end)) + && (start > rgd_end->rd_data0 + rgd_end->rd_data)) + return -EINVAL; /* start is beyond the end of the fs */ while (1) { @@ -1336,7 +1338,7 @@ int gfs2_fitrim(struct file *filp, void __user *argp) } out: - r.len = trimmed << 9; + r.len = trimmed << bs_shift; if (copy_to_user(argp, &r, sizeof(r))) return -EFAULT; |