| commit | 9e2fa418fbe71dd472fe5a9cd89ca26d5b594920 | |
| author | Michael Roth <mdroth@linux.vnet.ibm.com> | |
| Tue, 29 May 2012 15:08:50 +0000 (29 10:08 -0500) | ||
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | |
| Wed, 30 May 2012 02:00:42 +0000 (29 21:00 -0500) | ||
| tree | 471cfdc9d31482b3388132d8d769b4475ccd227e | treesnapshot (tar.gz zip) |
| parent | eecae14724b64d43f9a44b9b4e69143961c201a3 | commitdiff |
qemu-ga: avoid blocking on atime update when reading /etc/mtab
Currently we re-read/re-process /etc/mtab to get an updated list of
mounts when guest-fsfreeze-thaw is called. This can cause an atime
update on /etc/mtab, which will block if we're in a frozen state.
Instead, use /proc's version of mtab, which may not be up-to-date with
options passed via -o remount, but is compatible for our use cases since
we only care about the filesystem type.
Reported-by: Matsuda, Daiki <matsudadik@intellilink.co.jp>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Currently we re-read/re-process /etc/mtab to get an updated list of
mounts when guest-fsfreeze-thaw is called. This can cause an atime
update on /etc/mtab, which will block if we're in a frozen state.
Instead, use /proc's version of mtab, which may not be up-to-date with
options passed via -o remount, but is compatible for our use cases since
we only care about the filesystem type.
Reported-by: Matsuda, Daiki <matsudadik@intellilink.co.jp>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
| qga/commands-posix.c | diffblobblamehistory |