[CIFS] redo existing session setup if needed in cifs_mount

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When cifs_mount finds an existing SMB session that it can use for a new
mount, it does not check to see whether that session is in need of being
reconnected. An easy way to reproduce:

1) mount //server/share1
2) watch /proc/fs/cifs/DebugData for the share to go DISCONNECTED
3) mount //server/share2 with same creds as in step 1.

The second mount will fail because CIFSTCon returned -EAGAIN. If you do
an operation in share1 and then reattempt the mount it will work (since
the session is reestablished).

The following patch fixes this by having cifs_mount check the status
of the session when it picks an existing session and calling
cifs_setup_session on it again if it's in need of reconnection.

Thanks to Wojciech Pilorz for the initial bug report.

Signed-off-by: Jeff Layton <jlayton@tupile.poochiereds.net>
Signed-off-by: Steve French <sfrench@us.ibm.com>

...

This commit is contained in:

Jeff Layton 2007-12-31 01:37:11 +00:00 • committed by Steve French

parent 05b3de63da

commit 1d9a8852c3

2 changed files with 11 additions and 2 deletions

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3

fs/cifs/CHANGES

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10

fs/cifs/connect.c

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